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Brian Gavin Princess Cut vs Brian Gavin Round Diamond


Apr 8

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Hi Danny, I find myself in a bit of a dilemma, most of ring pictures that my girlfriend has cut out and pinned up around the house (subtle, I know!) have princess cut centers, but a few of them feature round diamonds; all of them are set in white gold, surrounded by little diamonds which run around the edge of the diamond and down the band. From what I’ve read, round brilliant cut diamonds exhibit better light return and sparkle, so I’m inclined to go with that, but I think she really likes the princess cut… which shape is best? I’m looking at two BG diamonds; perhaps you can give me your opinion of them and suggest a setting? -B. Tate

“A Happy Wife means a Happy Life”

michelle-princess-halo-style-engagement-ring-brian-gavinAs a married man, I find myself laughing because while you admit to being aware of all those “subtle hints” you’re still not getting it my friend… your girlfriend wants a princess cut diamond, not a round. Thus I’m going to suggest that you buy the 1.088 carat, G-color, VS-2 clarity, Brian Gavin Signature Princess cut diamond, rather than the 1.016 carat, G-color, VS-2 clarity, Brian Gavin Blue round diamond with medium blue fluorescence, and then I’m going to explain why either one is a great option, which will look great in a Halo style engagement ring like the Michelle from Brian Gavin, which is pictured to the left for your reference.

Which diamond shape is brighter, round or princess?

Assuming that the round and princess cut diamonds are both ideal cut diamonds from the Brian Gavin Signature collections, I don’t think that one is brighter than the other, because they both have overall cut grades of AGS Ideal-0, as determined by the American Gem Society Laboratory (AGSL) on their Platinum Light Performance grading platform, which uses Angular Spectrum Evaluation Technology (ASET) to measure the diamonds for brightness, and determine how the diamond is making use of the light which it is exposed to within the room… this is the image that you see at the top of this article.

is-round-or-princess-cut-diamond-brighter-bgd-agsl-104067973020

If you look at the ASET image provided on the Diamond Quality Document (DQD) for the 1.016 carat, G-color, VS-2 clarity, Brian Gavin Blue round diamond with medium blue fluorescence, and compare it to the ASET image for the 1.088 carat, G-color, VS-2 clarity, Brian Gavin Signature Princess cut diamond, pictured above, you’ll see that both of them exhibit mostly red, which represents the brightest light that can be reflected by a diamond; and a little bit of green, which represents the second brightest light being reflected by the diamond; and a consistent distribution of blue, which represents the contrast created by our heads casting a shadow over the pavilion main facets, which in this particular case is actually being darkened by the camera lens, creating static contrast which is often perceived as sparkle.

Given the fact that both the Brian Gavin Signature Round diamond and Brian Gavin Signature Princess cut diamond that you are considering, were cut to proportions which maximize the volume of light being reflected by the diamond, and to a level of optical symmetry which creates more sparkle than diamonds cut to a lesser degree of perfection, I don’t see how you can go wrong with either diamond. However I strongly recommend the princess cut diamond, based upon your indication that the majority of ring pictures which your girlfriend is cutting out and pasting all over the house, feature princess cut center stones.

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