List of GIA Report Comments And What They Mean

gia certificate comments what do they mean

What do the comments in a GIA certificate mean?

When shopping for a diamond engagement ring, the grading report (certificate) is an important document that describes the quality of the diamond. Yet, most consumers do not fully understand the information found in the certificate.

In fact, the “Comments” section of the GIA report is something that consumers frequently have questions about. In this write up, we will take an indepth look at the different types of remarks found under the comment section and show you what they mean.

Let’s dive in!

What is the Purpose of the Comments Section in a Grading Report?

The ‘Comments’ or ‘Other comments’ section in a grading report is reserved for stuff that the laboratory wants you to know about yet cannot be properly represented in other sections of the report.

Broadly speaking, most of the information placed in the comments section is regarded as minor and doesn’t usually impact the appearance of the diamond. That said, there are cases where comments are deemed acceptable and unacceptable in my professional opinion.

Whether a comment is malignant and benign largely depends on which lab graded the diamond, the size of the stone and clarity grades assigned. Hence, it depends on a case by case basis.

Examples of Comments That Are Generally OK And Not a Problem

  • Additional clouds are not shown / Additional pinpoints are not shown – This indicates the presence of inclusions that are plotted on the diagram because of their sheer number or minute sizes. Typically, these comments will usually not impact appearance and are already accounted for when a rating is assigned for clarity.
  • Surface graining is not shown – This statement refers to the presence of irregularities in the diamond crystal during the growth process. Surface grain lines are usually transparent and faintly detected even under 20-30X magnification.
  • Internal graining is not shown – Like surface graining, the distortion of growth planes in the crystal lattice can result in faint lines within the diamond. Internal graining is a feature that is hard to observe even under magnification. Detection usually depends on the viewing angles and lighting conditions.
  • Minor details of polish are not shown – A typical remark found in the Internally Flawless grade, this is a non-issue and serves to differentiate a flawless from an internally flawless diamond.
  • Additional twinning wisps not shown – Typically found in slightly included (SI) diamonds, twinning wisps are caused by changes in direction during a crystal’s growth.

As I mentioned earlier, every diamond is different. For clarity grades of VS2 or better, you will most likely be safe. If you see such comments on your GIA report for stones with SI1 or lower, my best advice is to get someone trained to eyeball the diamond before purchase.

In severe cases and low clarity ratings (<SI2), factors like additional clouds or internal graining might make a diamond appear hazy and this is something that you can’t tell from a piece of paper.

Comparison of 2 SI1 Diamond Inclusion Plots With Comments

normal looking inclusion plot for si clarity
diamond inclusion plots that are too good to be true

Both plot diagrams show SI1 diamonds of 0.70 carats in size.

If you are purchasing SI clarity stones and the inclusion plot looks amazingly clean with little or no inclusions except for the entries in the comments section, I would highly advise a careful examination of the stone to check for problems.

In my experience, I have come across many SI diamonds that have suspiciously clean looking plots and they appear milky in real life because of the clouds or twinning wisps listed in the comments section.

The rule of the thumb is, you can’t game the GIA/AGS grading system. There is always a reason for a diamond to be graded as a slightly included stone. Most of the time, if an SI stone has a nice neat inclusion plot, the flaws are usually more serious than you think it is!

When shopping for diamonds, videos in neutral lighting are mandatory for an unbiased assessment. James Allen and Blue Nile are superb vendors that provide videos to help you see and analyze how a diamond. Check them out!

These Comments Should Raise a RED Flag!

what do these gia report comments mean?

Don’t be afraid of seeking clarifications and asking questions!

Crown angles greater than 40 degrees – Comments about crown angles and related remarks to cut proportions are significant issues to beware of. They usually indicate that the stone’s cutting is problematic and are telltale signs of poorly made diamonds.

Internal laser drilling not shown – Be on the lookout for remarks and any mentions of laser drill holes. The presence of these features indicates a clarity enhanced diamond and that the stone was treated artificially.

Beware of Grade Setting Statements in the Comments Section

bluenile cloudy clarity based on clouds not shown

This SI2 diamond is hazy looking because of excessive clouds!

Grade setting statements should be avoided for diamonds with low clarity grades. For example, the sentence “Clarity grade is based on clouds that are not shown” in an SI2 stone is the unholy stamp of death for a diamond’s visual appearance.

Brilliance and dispersion suffer because the cloud inclusions occur throughout the stone such that it is no longer feasible to plot them on a 2D diagram. For low clarity diamonds, there is a very high probability that the diamond will appear hazy or milky due to this remark because the inclusions impede the pathways of light transversing through the stone.

For diamonds with VS2 or higher grades, such comments require a case by case analysis. The best way to determine any negative effects is to examine the diamond physically or seek the help of a professional.

Similar to the point mentioned above, there are other clarity grade setting comments that require further analysis before you buy them:

Clarity grade is based on feathers that are not shown.
Clarity grade is based on internal graining that are not shown.
Clarity grade is based on pinpoints that are not shown.
Clarity grade is based on a patch of color that is not shown.


patch of color

Grade setting remarks like patches of color are uncommon occurrences.

Paying Attention to Details Will Help You Avoid Costly Mistales

I want to stress the importance of asking the jeweler for clarification if you see anything in the grading certificate that isn’t clear. If the jeweler himself is unsure or gives an ambiguous answer, switch your jeweler or opt for an independent appraiser.

At no point in time should you buy such diamonds blind and expose yourself to risks of getting a problematic stone.

To conclude, you should always take extra care in reading the entire grading report. Most people simply skim through a report and bypass the comment section. Don’t make this mistake!

Remember, you are paying significant amounts of money for a diamond and the details do matter. I believe I had covered and touched on the different types of comments used by laboratories.

However, if you come across other comments that aren’t listed here or need my second opinion on a stone, feel free to leave me a message below.

A grading report by itself doesn’t tell you exactly how the diamond looks like. HD videos and magnified images provided by vendors such as James Allen and Brian Gavin Diamonds can help you visualize how the diamond looks like in real-life.

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  1. Avatar
    April 3, 2013 at 8:49 am

    Could you explain the portion of color patches in more details? I found a listing at James Allen but couldn’t identify where it is found in the video. =>

  2. Avatar
    July 8, 2013 at 4:02 am

    What about “minor details of polish”? I found this in a GIA grading report for an E color IF diamond.

  3. Avatar
    Paul Gian-
    July 10, 2013 at 4:27 am

    I missed that out caused I talked about it on a separate page. Anyway, thanks for reminding me! I had now updated this webpage to reflect the information. FYI, this page about E diamonds may also offer additional insights:

    Let me know if there’s anything else that’s unclear to you.

  4. Avatar
    January 25, 2015 at 4:13 pm

    I am looking to buy a 1.5 carat diamond with a GIA graded VVS1 clarity. On the clarity plot, the diagrams are totally clean and under the comment section, I see a remark “clarity is based on internal graining that is not shown”.

    Could you offer any advice on this because I’m starting to have doubts about the diamond and want to know if I’m getting conned. The jeweler I spoke to said this remark didn’t matter and the diamond is one of the most brilliant she’s ever seen. Also, what’s internal graining and how does it look like? I tried looking for it under the loupe but could detect anything out of the ordinary.

  5. Avatar
    Paul Gian-
    February 2, 2015 at 6:51 am

    whitish internal graining lines in diamond

    Photograph credit: GIA

    In a VVS1 diamond, this remark is a non issue and is very insignificant. In no way would it affect how the diamond looks like. I would be more concerned about the cut quality and if you haven’t done so, you can research on how to determine cut at these links:

  6. Avatar
    October 19, 2015 at 8:08 am

    Hi Paul,

    Thank you for your posts I find it very help being a first time diamond buyer. I had a question in relation to “external graining not shown” which is listed in the comments of the GIA cert of a 1.1 carat triple X VS1 stone I am looking at. The clarity plot is relatively clean, however the statement “external graining not shown” has me slightly concerned that the diamond is flawed, and won’t have the same quality polish as one that didn’t have this graining comment. Any advise would be much appreciated.

  7. Avatar
    Paul Gian-
    October 19, 2015 at 8:55 am

    Which laboratory graded the diamond? “External graining” is not a typical term used by reliable labs in today’s market. The equivalent of that should be surface graining which is widely used to describe grain lines found on the diamond facet surfaces.

  8. Avatar
    February 24, 2016 at 8:53 pm

    I know this is an old article, but after digging through Google it helped me the most.

    This diamond from James Allen looks virtually flawless from the imagery. However, it is graded SI2, only detail on the GIA is “cloud.” Is this the kiss of death you speak of?

  9. Avatar
    Paul Gian-
    February 24, 2016 at 11:46 pm

    Maybe. This diamond doesn’t appear all that hazy to me. The inclusions can be found at 12 oclock but a physical examination by James Allen should be able to confirm whether the clouds pose an issue.

  10. Avatar
    October 13, 2016 at 7:44 pm

    I hope I can still get a response because I also see that this is an old article, but I am looking to buy a 1.26 carat, F, VS2 with an “Excellent” cut. The comments on the GIA cert say “Clouds, pinpoints and internal graining are not shown.”

    Is this an issue?

  11. Avatar
    Paul Gian-
    October 14, 2016 at 10:04 am

    It’s hard to say. In general, it wouldn’t be an issue for smaller diamonds. Do you have videos or images for the diamond?

  12. Avatar
    Nisarg Zaveri-
    October 14, 2016 at 7:42 pm

    I am looking to buy vvs2 -G- 0.92, GIA certified,
    In clarity characteristic it says: needle, pinpoint and internal graining, I don’t know any thing about internal graining, does this comments affect the clarity of the stone? Does the fire of the stone get affected?? Please help

  13. Avatar
    Paul Gian-
    October 15, 2016 at 5:09 am

    For a VVS2 diamond, these comments will not affect clarity in anyway the naked eye can see. Fire (dispersion) is impacted by cut quality more than anything else. Cut is KING not clarity. I suggest you give these pages a good read

  14. Avatar
    November 13, 2016 at 6:56 am

    Hi Paul

    Been offered a 3.3 carat G colour and VVS1 clarity by a friend. The other details based on the GIA report are:
    Shape : Round brilliant
    Cut grade: excellent
    Polish: excellent
    Symmetry: excellent
    Fluorescent : none
    Comments: clarity grade is based on internal graining that is not shown

    1. What does the comments means?
    2. Is this defect stone?
    3. Should I be worried if seller is hiding something?


  15. Avatar
    Paul Gian-
    November 14, 2016 at 2:59 am

    Read everyword here:

    For a VVS1 clarity rating, the internal graining shouldn’t pose an issue. Cutwise, everything is a question mark with the lack of data.

    Anyway, just a caveat, 99% of purchases or recommendations made by a “friend” in the industry don’t turn out well. Buy at your own risk.

  16. Avatar
    February 15, 2017 at 9:52 pm

    Hi Paul.

    What do you think of this diamond on James Allen? Sku 2173780 Is an H color ok for engagement ring, or should I go with a F-G

    $6500 budget. I like 1.2ct range and SI2 -SI1 clarity. Thoughts?

  17. Avatar
    Paul Gian-
    February 16, 2017 at 9:49 am

    It’s a terrible diamond. The steep pavilion angles kills light performance. This is a much better option:

  18. Avatar
    March 10, 2017 at 1:29 am

    Hi Paul,

    You are doing great job here.
    Your blog is a great help while choosing the diamond for the engagement ring.

    I’ve come across a diamond that looks really good…

    Carat Weight: 0.50
    Shape: Round
    Cut: Super Ideal
    Color: E
    Clarity: IF
    Measurements: 5.11 x 5.08 x 3.18
    Table: 56.0%
    Depth: 62.3%
    Symmetry: Excellent
    Polish: Excellent
    Girdle: Medium – Slightly Thick
    Culet: None
    Fluorescence: None

    Should I be worried that it is stated in the report that it has “minor details of polish”?

    Anything else I should pay attention to?

    Thank you very much!


  19. Avatar
    Paul Gian-
    March 10, 2017 at 3:11 am

    The comment is not of any significance. This is an IF diamond and as good as it gets in terms of clarity. On the other hand, I won’t say the same for cut quality until there is tangible proof.

    Read this:

  20. Avatar
    March 20, 2017 at 4:12 pm

    Hi Paul
    My son is buying engagement ring and is comparing between two stones as below :
    1 carat, H, IF, excellent cut and polish and symmetry, flouresence medium blue, minor details of polish are not shown
    1carat, G, vs1, cut very good, polish excellent, symmetry very good, flouresence none

    Price difference is minor. Thank you so much for your help

  21. Avatar
    March 25, 2017 at 2:58 pm

    Hi there, I bought this diamond and am waiting for arrival. I will take it in to get looked at, but what is your take on the diamond overall? I was looking for a more eye cleaned SI2 with good sparkle.

    Cut and ct weight was most important in this decision. I tried to get the most bang for my buck.

    Thoughts? Thanks

  22. Avatar
    Paul Gian-
    March 27, 2017 at 7:36 am

    Unfortunately, there’s no way to tell which is the better diamond without details like proportions, scope images and videos. It’s a shot in the dark and it’s risky to shop in this manner. Regardless of shopping in a brick and mortar store or via Internet stores, you definitely need more information!

  23. Avatar
    Paul Gian-
    March 27, 2017 at 3:16 pm

    The diamond is eyeclean. That said, it’s a little on the deep side with a high crown angle. This affects its face up size and may affect brightness.

  24. Avatar
    March 27, 2017 at 5:33 pm

    In regards to this diamond again, it was rated a 3x by GIA and is in the great and reccomended category for all the major angles. Table/depth/pavilion angle/crown angle

    I was told the sparkle and brilliance would be great.

    Are you nitpicking on this? Please email me at (email address removed) I would appreciate your feedback.

    Thank you.

  25. Avatar
    Paul Gian-
    March 28, 2017 at 2:29 am

    I’m not sure where you had gotten those information from. GIA 3X is a very broad range of cut quality and let me tell you that this diamond is nowhere near the top end of it.

  26. Avatar
    April 5, 2017 at 1:34 pm

    Hi Paul,

    I have purchased a diamond ring and received a GIA certificate stating following characteristics. Measurements 4.32 – 4.35 x 2.63 mm, Carat Weight – 0.30, Colour Grade – E, Clarity Grade – VVS2, Cut Grade – Excellent, Clarity Characteristics – Pinpoint, Cloud, Feather, INDENTED NATURAL, Polish – EXECELLENT and Symmetry – Very Good.
    However, when I went back to the jeweller and ask to check the GIA inscription on the diamond, it turned out to have a different GIA number compared to the certificate I had.
    The Jeweller have had a look at the GIA website and found out the Diamond has pretty much same feature apart from the following – Measurement 4.27 – 4.29 x 2.63 mm, Clarity Characteristics – Cloud, Feather, Pinpoint, EXTRA FACET. and Polish is VERY GOOD instead of Excellent.
    Do I need to worry about the above mentioned difference in my actual diamond report compared to the certificate I originally received?
    Is it possible to receive an original GIA certificate for my actual diamond from GIA?

    Looking forward to hear from you.

    Many Thanks

  27. Avatar
    Paul Gian-
    April 5, 2017 at 4:35 pm

    You definitely need to be worried and raise a red flag. If the GIA numbers are different, it just goes to show how irresponsible the jeweler has been. If I were to give the jeweler the benefit of a doubt, checks should have been performed prior to handing the diamond over to you. There’s really no explanation here that will cast a good light on them.

    Here’s what it’s more like to be. It’s likely a case of bait and switch. Demand a refund and go elsewhere.

  28. Avatar
    April 19, 2017 at 9:04 pm

    I purchased this diamond. Can you tell me your thoughts on it?

    I was a little concerned about the GIA report because I really didn’t understand it until I came across this article.

  29. Avatar
    Paul Gian-
    April 20, 2017 at 6:17 am


    I reviewed the diamond and I think you did pretty well with the stone. It’s well cut and eyeclean. In a VS1 diamond, I wouldn’t worry about the inclusions found in the report (feather, cloud, cavity). They are minute and will not affect the diamond in any way.

  30. Avatar
    April 20, 2017 at 4:05 pm

    Thanks for your feedback. Your website is so informative and really helped me with my understanding of the 4 c’s. I went to some popular jewelry retail stores and would ask them the 4 c’a and they wouldn’t give me specifics. They would say well it’s near colorless and eye clean lol I went with your advice and shopped at James Allen and the experience was so much better. I never thought I’ll buy a piece of jewelry online but your website helped educate me in the process. Thanks again

  31. Avatar
    April 28, 2017 at 11:11 pm

    Hello Paul,

    Like many asking for your feedback, I’d like to ask your opinion on this stone;

    The “clarity is based on internal graining that is not shown” has me concerned.

    I found the AGSL Proportion Charts online.

    Do you find these charts as a reliable way to at least screen cut grade for potential purchases?


  32. Avatar
    Paul Gian-
    April 29, 2017 at 8:47 am

    The comment is not an issue in a VVS1 diamond. However, cut quality is. This is NOT a well cut diamond.

  33. Avatar
    April 29, 2017 at 4:07 pm

    Thanks Paul, I appreciate your comments.

    In other words, you’re saying the AGSL charts are of little value since this diamond is right in the middle of “ideal” cut on the appropriate chart.

    Thanks again!

  34. Avatar
    Paul Gian-
    May 1, 2017 at 2:34 am

    Proportions are only a guideline. And in this case, this diamond already has POOR proportions to begin with because of the steep pavilion angles with this table/depth combination. Use this as a guideline and READ EVERY SINGLE WORD IN THE FOLLOWING ARTICLE:

  35. Avatar
    May 1, 2017 at 5:11 pm

    Thanks again Paul.

    I’m completely new to this and all of the info you’ve provided is very helpful. And I just read every word of the two articles.

    Like many who use your site, my biggest fear is paying too much for a stone. Local jewelers want you to buy right now. Online sellers give the impression of having great deals, but you’re buying blind.

    Fortunately, I still have some time.

    Thank you,

  36. Avatar
    May 4, 2017 at 12:10 am

    Hi Paul,

    I have selected 2 diamonds to decide on but notice one GIA report number begins with 7xx dated Feb 2016 yet the other stone begins with 6xx show a later date of Nov 2016. Are they not in chronological order? Should I worry there could be a re-graded stone that someone has traded back in? as I have read this could happen.

    Below are the details of my selected diamonds, could you give me your opinion on it which is a better stone?

    Measurement: 6.57 – 6.61 x 4.06 mm
    Carat weight: 1.08 carat
    Colour Grade: F
    Clarity Grade: VS1
    Triple Excellent
    Depth: 61.6 % Table: 58 % Crown Angle: 35.0° Crown Height: 15.0% Pavilion Angle: 41.0° Pavilion Depth: 43.5%
    Star Length: 50% Lower Half: 80%
    Girdle: Medium, Faceted, 3.5%
    Culet: None
    Fluorescence: Faint
    Clarity Characteristics: Crystal, Feather, Pinpoint

    Measurement: 6.63 – 6.65 x 4.14 mm
    Carat weight: 1.13 carat
    Colour Grade: G
    Clarity Grade: VS1
    Triple Excellent
    Depth: 62.3 % Table: 58 % Crown Angle: 35.5° Crown Height: 15.0% Pavilion Angle: 41.0° Pavilion Depth: 43.5%
    Star Length: 50% Lower Half: 80%
    Girdle: Medium to Slightly Thick, Faceted, 4.0%
    Culet: None
    Fluorescence: None
    Clarity Characteristics: Cloud, Needle

    Many thanks.

  37. Avatar
    Paul Gian-
    May 4, 2017 at 2:41 am

    The numbers are not in chronological order. Both diamonds proportions aren’t great. The table sizes are too large and the lower girdle facets are too long. You need to read every single word here:

  38. Avatar
    June 27, 2017 at 6:21 pm

    Hi Paul,

    I’ve just come across your website and I think it’s great, you are very knowledgeable on diamonds so I wonder if I can ask your option on this emerald diamond please.

    the GIA report shows that it has pinpoint and surface training under it’s quality characteristics, should this be a concern?



  39. Avatar
    Paul Gian-
    June 28, 2017 at 6:12 am

    In a VVS1 diamond, the comment isn’t a concern nor does it in anyway affect the appearance of the diamond.

  40. Avatar
    June 28, 2017 at 7:24 am

    thanks Paul, that’s great to know. what are your thoughts on the dimensions of the stone, do these look good to you?

    your help is most appreciated, this is the first time I have looked into diamonds and it’s quite a minefield.

    thanks again


  41. Avatar
    August 29, 2017 at 11:38 am

    Hi, I’m trying to make an informed buy of a white and sparkly diamond of 0.4 ct. However my jeweler is skeptical to me buying my own diamond. I would like to prove her wrong as I think it’s fun to make the choice by my self, yet not wanting to buy a bad quality diamond.
    I have tried to narrow down the selection based on best cut, better than H colour and very small inclusions to find a good quality diamond. Could this be a good choice?

    or if not, why?

    What about this?

    Can you recommend another one otherwise?


  42. Avatar
    Paul Gian-
    August 30, 2017 at 8:28 am

    Both diamonds are equally well cut for light performance. These 2 are top notch and I doubt you will find diamonds of this caliber in local stores. I would personally gravitate towards the E VS1 diamond.

    And just to add on, why do you even need to set the diamond with this particular jeweler. I would say that 90% settings available in the market can be found at James Allen. I actually recommend setting the diamond at the place where you buy the loose stone from. This reduces stress and hassle. It also makes one party completely responsible for the entire piece of jewelry.

  43. Avatar
    August 30, 2017 at 2:20 pm

    Hi Paul,

    thank you very much for your advice. I am also considering this one, do you mind giving me your opinion on this in comparison?
    The reason is that we are making custom rings with some diamonds from my grandmother, so I want all rings to match nicely. Ct is not the most important, but rather brilliance/quality.

    Is it worth to go for a true heart diamond or is that just adding cost?

  44. Avatar
    Paul Gian-
    August 31, 2017 at 1:10 pm

    The stone you picked is decently well cut for light performance. However, if cut quality is your priority, I would say that the True Hearts range offers better selections.

  45. Avatar
    September 10, 2017 at 7:06 pm

    Hi Paul,

    I have never bought a diamond before and am finding the whole process quite stressful. I have done quite a bit of research around proportions and clarity etc and believe that I have found a couple of fairly good diamonds. Would you please be able to let me know whether they would be a good choice?



  46. Avatar
    Paul Gian-
    September 11, 2017 at 8:58 am

    For a first time shopper, you did very well to pick these diamonds out. Both stones are pretty well cut for light performance and are eyeclean. Well done!

    I would say that the 2nd diamond would be the better option of the 2. That’s the one I would personally pick between them.

  47. Avatar
    September 29, 2017 at 4:01 pm


    Recently I found a diamond (three E, VVS1 and D color), the GIA report shows the comment: Clarity grade is based on internal graining that are not shown.(GIA number:2264902055)

    Is it have any problems or something may I pay attentions?
    Is this diamond worth buying?
    The price is about twenty-six percent off of international quoted price.

    Thank you for your help.


  48. Avatar
    September 30, 2017 at 3:38 am


    Recently I found a diamond that 1.08 carat, D color, three excellent and VVS1, but affiliated comment : Clarity grade is based on internal graining that are not shown.
    What’s matter about it?
    The price is about 26% off of international quotation.
    Gia number:2264902055
    Is this worth buying?
    Is it have any problems or something may I pay attention?
    Please advise me.


  49. Avatar
    Paul Gian-
    October 1, 2017 at 2:23 pm

    The clarity comment is NOT an issue with a VVS1 diamond. As for whether the diamond is worth buying, you will NEED tangible data to analyze cut quality and performance.

  50. Avatar
    November 1, 2017 at 4:17 pm

    Hi Paul,

    could you please give me your comments on following stone: GIA 5181703455.

    I don’t see any bigger inclusions, to good to be a VS2?

    What I am afraid of is the fact that the clarity grade is based on cloudes that are not shown.

    Is it to risky to buy it blind? Do you know where I could get more info about the stone or how do I minimize the risk?

    Many thanks!

    Please also comment on the proportions/measures of the stone.

    Crown height

    and so on…

  51. Avatar
    Paul Gian-
    November 2, 2017 at 10:04 am

    Trying to judge a VS2 diamond’s appearance based on a grading report is a fool’s errand.

    Read this:

    The clarity comment is a mark of death for brilliance in a diamond:

  52. Avatar
    May 14, 2018 at 7:27 am

    Hi Paul

    I bought an Asscher Cut 1.90ct I-SI1 with ex cut, ex polish and ex symmetry and no fluo.
    The plot only shown 2 very tiny feathers but the comment says “ clarity grade is based on clouds that are not shown “
    Wiould be this diamond 99% probability will appear hazy or milky even have an excellent cut, excellent polish and excellent symmetry?

    I just paid the seller but not ship yet. Should I just go with other diamond instead?
    Thank you


  53. Avatar
    Paul Gian-
    May 14, 2018 at 5:42 pm

    It is very likely going to be hazy. Get a refund and start over elsewhere. Any good jeweler should have warned you on the onset about that kind of clarity issues the diamond faces. Also, an ex polish and symmetry means nothing when it comes to Asscher cut diamonds. Most stones are duds and you need to be extremely selective to find diamonds cut for light performance.

  54. Avatar
    May 19, 2018 at 6:25 pm

    Hi Paul,
    I just want to make a corrections on the stone actually is 1.98ct D-SI1.
    I returned the stone and now I got the 1.90ct I-SI1 and the comments says “Clouds are not shown” can this clouds are not shown will effect the brightest of the diamond?
    Thank you


  55. Avatar
    Paul Gian-
    May 20, 2018 at 3:45 am

    There’s no way to tell as clarity has to be determined on a case by case basis:

    Do you have a direct url link to the diamond with TANGIBLE data like videos/photographs?

  56. Avatar
    Vipul Morandani-
    December 24, 2018 at 9:43 am

    What is the meaning of presence of internal laser in the certificate?????

  57. Avatar
    Paul Gian-
    December 24, 2018 at 2:09 pm

    It means the diamond was treated in a permanent way using by using lasers to remove inclusions and improve clarity.

  58. Avatar
    Andrew Klein-
    January 20, 2019 at 4:59 am

    Hey Paul! What are your thoughts on these two diamonds? I see how much you have helped others, and it’s really great what you do. I’m a huge fan of your site and have probably read every article :) Jewelers look at me like I’m crazy when I when I bring my checklist of proportions and requirements for diamonds!

    Here are my two options- If you see anything better, I’m all ears!

    Stock Number: 2932967Y
    Stock Number: 3069051Y

    Thanks in advance for helping!

  59. Avatar
    Paul Gian-
    January 20, 2019 at 1:16 pm

    I think the reaction is pretty normal. Most jewelers don’t expect consumers to be educated or had done their research prior to shopping. In fact, most are just as clueless as the consumer. Don’t assume that just because they are at the opposite side of the counter, they know more about diamonds than you. They don’t.

    I looked at both diamonds and the first diamond: 2.27 Carat Round Lab Created Diamond Super Ideal Cut • H Color • VS2 Clarity is the better cut diamond. When I did a search for you, I also ended up with this same diamond on a 10k budget for a 2 carat diamond.

  60. Avatar
    February 2, 2019 at 5:02 pm

    Dear Paul,
    I’ve recently set my sights on this stone after seeing it in a jewelry.

    Sparkle looks ok, I like the idea of having an E color and a Very Good Cut Grade, as I still think that those are much more important to the visual effect than a couple of degrees of clarity.

    Still, i got worried when I saw that “Cloud” listed under Clarity Characteristics. It’s not the “Clarity grade is based on clouds that are not shown” that you listed above, but may it mean the same thing?

    I saw the stone in person and it doesn’t look hazy at all, but I’m not an expert, so your advice will surely be helpful!

    Thanks in advance

  61. Avatar
    Paul Gian-
    February 4, 2019 at 3:46 am

    It is an absolutely poor choice of a diamond. Cutwise, it is mediocre and let me tell you that it is going to be hazy. And that’s the problem when beginners look at diamonds in biased lightings. Everything is going to look good regardless of them being garbage tier or not in a jewelry store.

  62. Avatar
    February 10, 2019 at 5:58 am

    Hi Paul,

    Just came home from a visit to a different jeweler who had a much bigger choice of stones, who proposed me a 0.80 E SI1 VG round cut diamond.

    At the beginning, I was driven away by the large table and the thick girdle, but then I noticed that he had a Sarine machine in his lab and I asked him if he could run the stone in it.

    Surprisingly he agreed and the outcome was much better than I expected. Basically, the cut respected all the GIA Excellent criteria for a 60% table stone, apart from Girdle thickness, which bounced it back to VG.

    But more importantly, the ray-tracing software gave a very good return in terms of brilliance, fire and scintillation. All values were in the high “Very Good” range, with brilliance and fire just shy of Excellent.

    I then asked him to run two other diamonds, a poor one and an outstanding one (according to certificates), just to verify the accuracy of the machine and honestly the results it gave were the expected ones, so I’d exclude a malicious use of the Sarine tools.

    What are your thoughts on this? May this be the case of a diamond that performs very well despite being far from your ideal sizes? Or I should doubt the Sarine results?

    Another good point, the stone looks eye clean. Under the magnifying lens I could see the wisp, but no matter how hard I looked I couldn’t find the feather.

    Let me know what you think about this, I’m running out of time and suddenly this looks like a viable option…

    Thanks in advance for your help


  63. Avatar
    Paul Gian-
    February 11, 2019 at 2:38 am

    Well, I can tell you with 100% certainty that this diamond is garbage tier cut quality. The pavilion angles are way too steep and will cause significant light leakage.

    For a jeweler to actually make such a recommendation to you, it tells me 2 things. One, he has zero idea of what cut quality is. Or two, he knows what he is doing and he’s just being a scumbag to see if he can offload lousy diamonds from his inventory to you. Either way, both of which simply reflect badly on this jeweler.

    The Sarine scan is used to map a diamond’s proportions and facet arrangement and there’s something else you need to understand about the GIA cut grades.

    When a diamond is rated as Very Good Cut, it is a nice way of saying it is garbage tier cut quality. Even if the GIA rated the diamond as an Excellent cut, the range is too broad and you must perform your due diligence and ask for tangible data.

    There is NO WAY that this diamond is well cut and you are wasting your time with this jeweler.

    If you want to get better quality at better prices, read this:

  64. Avatar
    February 12, 2019 at 9:42 am

    Dear Paul,
    Thanks for that feedback, it has helped me a lot and I managed to get away from that diamond despite a lot of pressure from the jewler who (sadly) is selling to my mother since a very long time.

    So the search is still on, I may be able to submit you something else soon. And kudos for the service you are providing here, the fact that you are doing it just out of passion makes it even more amazing!

  65. Avatar
    June 11, 2019 at 11:31 am

    Hi Paul

    Was reading some articles regarding the comments of diamonds in GIA carts and came across your page. I recently purchased a 1.08 carat, VS2, F colour and I noticed that the comments written was “additional clouds are not shown. Pinpoints are not shown”. As I was pretty excited and nervous on the day of purchased, I missed out the step on checking the diamond under a LED/Flourescent lighting. Am worried if there’s any issues (e.g. milky, hazy or causing the diamond to be less bright) with diamonds based on the comments.

    Appreciate your advice!

    Thank you.

  66. Avatar
    Paul Gian-
    June 12, 2019 at 4:08 am

    Without details like the intensity of fluorescence or specific details, I cannot offer any constructive comments. In general, fluorescence shouldn’t pose any issue and isn’t it a little too late to have buyer’s remorse now? Even if fluorescence is a problem, what can you do about it? Just enjoy the diamond purchase!

  67. Avatar
    June 12, 2019 at 2:22 pm

    Hi Paul,

    I’m looking at a fancy intense yellow diamond. Emerald shape VS2. Color is even. Excellent polish. But the Gia report says a patch of color is not shown. Would you please explain what that might mean?


  68. Avatar
    Paul Gian-
    June 12, 2019 at 6:13 pm

    I will need videos or detailed photographs before I can offer any objective comments. Offhand, the EVEN color is very technical when GIA grades diamonds. Just because a diamond is classified as EVEN, it doesn’t mean that the diamond’s appearance will have evenly distributed colors. There could be contrast patterning or cut related issues that affect its visual appearance.

  69. Avatar
    December 16, 2019 at 5:27 pm

    Hi Paul. Thank you for all the helpful information you are providing for us who don’t know much about Diamonds. I am buying a diamond that is VVS2 I color and on the cert it says clouds and natural indents. it is making me second guess the quality and value of the diamond. table is 57% and everything else is listed as excellent with medium blue florescent. can you please help me out? am I being scammed ? thank you so much for your time.

  70. Avatar
    Paul Gian-
    December 17, 2019 at 5:25 pm

    Who graded the diamond as VVS2? Having clouds and natural indents in a VVS2 grade is pretty normal in a GIA certificate. Without details, there’s nothing concrete I can tell you about the diamond and you might want to read this article for more info.

  71. Avatar
    January 15, 2020 at 9:24 pm

    Hi Paul,

    Thank you for this insightful article. I’ve looked at both SI1 and SI2 diamonds and find that SI2 diamonds seem to have alot more inclusions that stretch across the diamond’s face. I’m interested in a SI1, 1.09 carat diamond from blue Nile. The GIA report mentions additional clouds and pinpoints not shown. The image shows some minor cloud and pinpoints along the edges of the diamond, but the image looks more similar to your example of a potential problematic SI1. Is this something to be concerned about? Based on the image, do you see anything that should raise a red flag?

    Thank you for your time.

  72. Avatar
    Paul Gian-
    January 16, 2020 at 8:39 am

    The difference between SI1 vs SI2 diamonds can be quite technical but in general, SI2 diamonds tend to be the line I draw and stay away from when buying diamonds because the flaws usually cause issues at the SI2 rating.

    I’ve reviewed the diamond and the inclusions are non-issues. The grade making inclusion for this diamond is the feather inclusion which is found at the girdle area of the diamond. FYI, inclusions are always listed in the order of severity on the grading report. The extra comment on the clouds and pinpoints are inconsequential and are there to make the report complete as they are minute.

  73. Avatar
    August 9, 2020 at 2:25 am

    Hello Paul. I have purchased, but not yet seen, a 3ct H SI1 stone from Blue Nile. When I compare it to other H stones on the website it looks the same color. When I enlarge the spinning picture of the stone it has no visible inclusions! Even the map on the GIA report shows two feathers below the girdle and not on the edges. The other H SI1 stone, by comparison, has flaws when I enlarge the enlargement. The only reason I can think of to define the stone as an SI1 is because it has Medium Yellow Fluorescence but how does that impact Clarity. There is almost no information on that color fluorescence anywhere that I can find. My question is: could this have been a better color stone whose color was graded down because of the yellow fluorescence? Because to my untrained I its color looks the same as the other H stone I’m comparing it to and with no visible inclusions I think it is a lovely stone. What do you know about Yellow Fluorescence and what do you think I can expect to see when I receive it in a week?

  74. Avatar
    Paul Gian-
    August 9, 2020 at 4:19 pm

    Medium yellow fluorescence will make the diamond look a tad ‘yellower’ in UV lighting conditions and is actually pretty uncommon in colorless diamonds. The market dings and hates diamonds with fluorescence (blue and yellow alike but the latter a bit more) and I personally love fluorescence because of the cool effect it has. GIA grades diamonds in a neutral lighting condition with no UV and that should give you an assurance that the diamond’s base color is correctly assessed. Look at the diamond in person and see if you can see inclusions in it and bring it out to sunlight and see if you can detect any changes in body color. Chances are, you won’t and instead be seeing environmental colors being reflected in a well cut diamond.

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