Overview of Modified Round Brilliant Cuts – Solasfera & Star 129

For people who had just started their research into diamonds, one of the first few concepts might probably be introduced to would be the various shapes that diamonds exist in. Upon delving deeper into the different shapes, you will soon realize that the core of the various cutting styles stem from the same roots.

A large number of modern fancy shapes are actually based on the full round cut brilliant. In fact, many branded diamonds like the Leo Diamond, Zale’s CelebrationGassan 121 and Wylde Flower Diamond are created by making modifications to the facet structure of traditional round brilliant cuts. In order to label these stones technically, labs like GIA and AGS use the term modified round brilliant cut to depict such stones.

modified round brilliant cut ring

Are Modified Cuts More Brilliant And Sparkly?

What is a Brilliant Cut? What About Hearts And Arrows?

The brilliant style is undoubtedly the most popular cut technique and nothing proves that better than the fact that the two most popular diamond shapes, the full round and the princess shape are brilliants themselves.

The brilliant cut has been perfected with the aid of both mathematical and empirical data and is optimized so that the light return through the top facet (also called the table) would be maximal.

A perfectly aligned brilliant cut ought to display shapes that are reminiscent of arrows when looked at from the top and of hearts when looked at from the bottom. For that reason, stones of this type of cut are often referred to as “hearts and arrows”.

The traditional brilliant resembles a cone that has 57 little surfaces called facets. Naturally, this standard size and also the orientation of facets can be varied. Thus, a number of rather popular variations of the full round cut brilliant exist on the market.

Taking a Look at Solasfera Diamonds

When it comes to modified brilliant designs, one of my personal picks is the Solasfera diamond. “Sol” is Latin for “sun” and the name Solasfera is rather eloquent. On that note, even the internal facet structure of the stone is reminiscent of perfectly distributed sunbeams.


Technically speaking, a Solasfera diamond has 91 facets or 92 facets when a culet is present at its tip. The company claims that their creation is the “most brilliant” round cut diamond on Earth. And if you had been following my blog long enough, I usually toss such claims out the windows.

However, this case was an exception. The Solasfera really features vivid brilliance and scintillation that makes it well worthy of its name. In terms of craftsmanship, the Light Masters Corporation has set really high standards regarding their diamonds’ cut.

What About Star 129 And Other Modified Cuts?

star 129 diamond review


There are a number of other modified round cut diamond shapes apart from Solasfera. The list is endless but I would like to mention some notable ones like the Star 129 and Eighternity. Even though these special cuts have a smaller market share than the full brilliant, the Star 129 is has been dubbed the “absolutely the most spectacular diamond on the planet”.

Well, it is not our task to decide whether that is true or not as appeal is subjected to personal preferences. Being objectivity here is more important and we leave that statement up to the reader to decide.

As the name suggests, Star 129 diamonds have 129 facets instead of the “standard” 57 that the standard round has. That’s almost twice as much! When the polishing of a stone is carried out properly with skilled labor and proper planning, the additional number of facets can yield an increased shine and brilliance. That said, you should not be tricked by a sheer number as there are tons of other modified rounds that don’t appear as aesthetically pleasing to the eye.

Also, unless you are thinking of buying a diamond of least one and a half carat in size, you should probably stick with the standard round cut. The appearance of a Star 129 might come across kitschy if the diamond is not large enough to support all that brilliance.

If you think about it logically, 129 surfaces need to be placed on top of the stone during the cutting process. If you try to divide all that up with the surface area of a small stone, what do you think you would end up with? Precisely… It will result in super small surfaces. And when light hits on hundreds of this small surface, it can create a very messy (though bright) appearance.

Here’s a blown up view to let you see the finer details of the stone. If you are interested to view the stone in HD video, click here for details…

star129 modified round magnified image

Visual Comparisons of Diamonds Under Various Lighting



Is There a Winner Between These Stones?

warningAs you can see, the Star 129 wins hands down in spotlighting scenarios. It’s as bright and brilliant a diamond can get under such conditions. Personally, I would still prefer the Solasfera over the Star 129 diamond.


It really depends on where the lady works. Chances are, she will most probably be exposed to diffused lighting (office lightings) most of the time and I personally feel that the Star 129 diamond loses out on contrast in this aspect.

Diamond carat weight comes into play when you are looking at modified cuts with more facets than the traditional round brilliant. When the size of the diamond is small (< 1.5 carats), every individual facet would also be cut relatively smaller and this is where things get chaotic.

Ultimately, it is what you prefer (or the lady prefers) that really matters.

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