Hi, First off I’d like to thank you – the website is great and I definitely learned a lot. You steered me in the direction of Brian Gavin’s Blue diamonds. I love that they are unique and I think it work great on an engagement ring for my girlfriend of 6 years. I have narrowed it down to three diamonds in my price range, and I would REALLY appreciate your advice on which diamond I should go for. The 3 choices are:
Brian Gavin Blue 0.770 carat, H color, SI-1 clarity diamond, currently selling for $3,284.00
Brian Gavin Blue 0.774 carat, H color, VS-2 clarity diamond, currently selling for $3,431.00
Brian Gavin Blue 0.812 carat, I color, VS-2 clarity diamond, currently selling for $3,365.00
I am leaning toward the 0.812 carat diamond, based on size and clarity. However, I am a bit wary about the “I” color. Thank you very much for any help you are willing to give. Great site! ~ Adam J.
Thank you for your inquiry Adam, I am more than happy to assist you with narrowing down the three options which you have selected from the Brian Gavin Blue Collection which is comprised of round brilliant super ideal cut diamonds which exhibit properties of blue fluorescence when exposed to ultra violet light and black light. These diamonds are remarkable and I am a big fan of diamonds with blue fluorescence. Each of the diamonds within the Brian Gavin Blue Collection are produced by the same diamond cutters who manufacture the diamonds for the Brian Gavin Signature Collection of Hearts & Arrows diamonds, so the sparkle factor created by high levels of optical symmetry will always be present ~ so no worries in terms of visual performance, it’s going to be off the charts!
In terms of proportions, the three diamonds which you selected are all pretty much the same… all three of the diamonds have been cut with proportions within the center of the range designated for the zero ideal cut proportions rating by the American Gemological Society Laboratory (AGSL) and have received an overall cut grade of AGS Ideal 0, which is the highest rating available for this classification by the AGS Laboratory.
Both the 0.770 and 0.774 carat diamonds have a crown angle of 34.9 degrees which is offset by a pavilion angle of 40.9 degrees which is a combination that is well known to produce a phenomenal amount of light return because the primary reflective surfaces of the diamond are aligned in such a way that the majority of light that enters the diamond will be directed back up towards the top of the diamond. The 0.812 carat has a crown angle of 34.8 degrees which is offset by a pavilion angle of 40.7 degrees and it will be equally vibrant and full of life.
The inclusions within the 0.770 carat, H color, SI-1 clarity diamond with medium blue fluorescence are listed on the plotting diagram of the AGSL Light Performance Diamond Grading Report as being a diamond crystal and pinpoint size diamond crystals… essentially these are tiny diamonds that were trapped within the larger diamond crystal as it formed and as such they are no big deal. If you use the magnifying tool provided on the diamond details page you will be able to see the inclusions present within the center region of the table facet and they appear to be minimal.
The inclusions within the 0.774 carat, H color, VS-2 clarity diamond with strong blue fluorescence are listed on the plotting diagram of the AGSL Light Performance Diamond Grading Report as crystal, cloud, feather… a cloud is nothing more than a small group of pinpoint size diamond crystals which are located in close proximity to one another and a feather is a minute fracture within the diamond, in this case it is so minimal that it does not present a concern. Once again if you use the magnifying tool provided on the diamond details page you will see that the inclusions are quite small and difficult to locate even with magnification.
The inclusions within the 0.812 carat, I color, VS-2 clarity diamond with strong blue fluorescence are listed on the plotting diagram of the AGSL Light Performance Diamond Grading Report as crystal and feather, here again they are minimal and of no consequence. In this particular instance, the inclusions seem to be primarily located out within the edges of the diamond which will make them a little more difficult to locate because the crown and pavilion facets will help to mask their visibility.
The ASET Scope and Ideal Scope images for all three diamonds look great and thus I’m pretty confident that you could virtually select any one of these three diamonds and be absolutely ecstatic with it in terms of visual performance and sparkle factor, however I’m inclined to agree with you and lean towards the 0.812 carat, I color, VS-2 clarity puppy simply because it’s going to face up a little larger and the strong blue fluorescence will help to offset the I color.
By the way, I tend to be more concerned with the body color of a diamond when it is not a super ideal cut diamond because it is easier to judge body color when the visual performance of the diamond is not that great… however with diamonds of this cut quality, I’m much less concerned with the body color because the sparkle factor is going to make it difficult to judge body color when you or the diamond is moving because the scintillation created by the movement is going to distract the eye and make it more difficult to discern color…
Of course it’s much easier to judge body color within a diamond when it is being evaluated in a laboratory setting where the diamond is viewed from a side profile while sitting down upon it’s table facet (culet pointing up) on a white colored diamond grading tray under the controlled light of a GIA Diamond Light in a pitch black room… but out in the real world, I’m not that concerned about body color in diamonds of this cut quality and I would not hesitate to purchase an I color diamond from the Brian Gavin Blue Collection.
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)
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