Brian Gavin Signature Cushion Cut Diamond Review: 1.448 carat, G-color, VS-1 clarity, AGS Ideal-0 Cut

It’s been a  long time since a new diamond shape has taken my breath away, but I have to say that I find the new Signature Cushion Cut Diamond from Brian Gavin completely captivating. I’ve had the opportunity to review several of these diamonds in-person over the past few months and the volume of light return and sparkle continue to blow my mind. Take this 1.448 carat, G-color,VS-1 clarity, Brian Gavin Signature Cushion for instance, just look at how beautiful it appears in this video and try to imagine how beautiful it will be in real life instead of a video optimized at a lower resolution for the web.

Cushion Cut Diamond with Ideal Proportions:

Brian Gavin Signature Cushion Review AGSL 104066516009One of the reasons why I find the new Signature Cushion Cut Diamond from Brian Gavin so appealing is because it offers a level of light return and visual performance which rivals that of a round brilliant ideal cut diamond, and it’s no wonder because the diamond has an overall cut grade of AGS Ideal-0 from the American Gem Society Laboratory under the strict guidelines of their Proprietary Light Performance grading platform as demonstrated by the Diamond Quality Document for the 1.448 carat, G-color,VS-1 clarity, Brian Gavin Signature Cushion pictured to the left. The proportions of this diamond are amazing, it has a total depth of 61.1% and a table diameter of 54.7% with a crown angle of 34.3 degrees which is offset by a pavilion angle of 40.8 degrees with a thin to slightly thick, faceted girdle and a pointed culet.

If you compare these proportions to those of other cushion modified brilliant cut diamonds, you’ll see that they are closer to that of a round brilliant ideal cut diamond and this is why the volume of light return is so much higher than it is for other interpretations of cushion cut diamonds. And you don’t have to take my word for it, just look at all the red and green which is visible in the ASET image provided on the diamond grading report pictured above.

The color red on an ASET image represents the brightest light which is being reflected by a diamond, and the color green represents the second brightest light being reflected. The color blue by the way is used to show the contrast which is being created by the reflection of our head, or in this case the camera lens, reflecting off of the eight pavilion main facets located on the underside of the diamond.

This type of intensity is produced by combining zero ideal cut proportions with precise alignment of the facets and consistency of facet shape per facet section, it results in a high volume of light return and an incredible amount of sparkle.

Another reason the Brian Gavin Cushion Cut Diamond exhibits such broad flashes of brilliance and dispersion and a lot of scintillation is that it has a structure which is very similar to a round brilliant ideal cut diamond, it even has 57 facets just like a round brilliant and the facet design of the diamond is symmetrical, so the light is dispersed evenly throughout the diamond.

Why I chose this particular BGD Cushion:

One of the reasons why I selected the 1.448 carat, G-color,VS-1 clarity, Brian Gavin Signature Cushion Cut Diamond to write about today is because I think that it provides excellent value as well as beauty because at 1.448 carats, it falls just under the price increase which occurs between the 1.49 – 1.50 carat marks, so you can maximize your budget. Ideal cut diamonds this close to the 1.50 carat mark are extremely rare because most diamond cutters will cut the diamond to less desirable proportions in order to push the carat weight of the diamond over the 1.50 carat mark because doing so is more profitable.

I also like the balance of clarity and color which is provided by the combination of the VS-1 clarity and G-color grade of this diamond, it’s going to face up bright and white, and be completely eye clean… in fact, most people will find it pretty difficult to locate the inclusions using a 10x diamond grading loupe. The primary inclusions indicated on the plotting diagram on the diamond grading report are indicated as being crystals and clouds, which are simply tiny diamond crystals that were trapped within the larger diamond crystal as it formed.

Feel free to take advantage of my free Personal Shopping Service if you have any questions about the Brian Gavin Signature Cushion Cut Diamond, or if you’d like help selecting a diamond for an engagement ring, diamond pendant, diamond earrings, or another jewelry gift.

Todd Gray
Todd Gray is a professional diamond buyer with 30+ years of trade experience. He loves to teach people how to buy diamonds that exhibit incredible light performance! In addition to writing for Nice Ice, Todd "ghost writes" blogs and educational content for other diamond sites. When Todd isn't chained to a desk, or consulting for the trade, he enjoys Freediving! (that's like scuba diving, but without air tanks)
Todd Gray


Professional diamond buyer with 30+ years trade experience in the niche of super ideal cut diamonds. In my free time, I enjoy freediving & photography.
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