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What do the red and green symbols for inclusions represent on a lab report?

What do the red and green symbols for inclusions represent on a lab report?

Hi Danny, I’m in the process of shopping for a diamond engagement ring and am trying to figure out what the red and green symbols for inclusions represent on the diamond grading report… can you explain what the different colors represent, and possibly help me by providing some options for cushion cut diamonds in the range of 1.10 – 1.49 carats, F to H color, VS-2 and higher in clarity. I’m open to diamonds with blue fluorescence if the fluorescence does not make the diamond look milky or oily. Thank you. - Terrance S.

Well Terrance, the answer to your first question is easy enough… diamond grading laboratories, such as the American Gem Society Laboratory (AGSL) and the Gemological Institute of American Gem Trade Laboratory (GIA) use the color red to indicate inclusions which are located inside the body of the diamond, and the color green to represent external blemishes which are located on the outside of the diamond, so red is internal, and green is external.

Examples of internal inclusions which would be indicated on the plotting diagram of a diamond grading report in red are diamond crystals, pinpoint size diamond crystals, clouds of pinpoint size diamond crystals, needle shaped diamond crystals, feathers, knots, cavities, and twinning wisps.

Examples of external blemishes which would be indicated on the plotting diagram of a diamond grading report in green are chips, scratches, abrasions, and nicks, which may or may not be visible without magnification.

Brian Gavin Signature Cushion Cut Diamonds:

Medium Blue Fluorescence Ideal Cut DiamondsYou didn’t mention the range of price that you are working with Terrance, but I checked out the options currently available within our inventory of Brian Gavin Signature Cushion Cut Diamonds and really like the look of this 1.496 carat, F-color, VVS-2 clarity, Brian Gavin Signature Cushion cut diamond with medium blue fluorescence, because it maximizes the carat weight of the diamond without breaking into the price increase which occurs between the 1.49 – 1.50 carat marks… so you get the look of a 1.50 carat diamond without having to pay the higher price which it would command. As you can see from the picture to the left, the medium blue fluorescence looks amazing when the diamond is exposed to black light! The diamond will face-up completely white when viewed under normal lighting circumstances, if you’d like to see the fluorescence, drop by an aquarium shop or some other place that has black light and slip the ring directly under the light to activate the fluorescence.

All of the Brian Gavin Signature Cushion cut diamonds are cut to the same range of specifications for proportions and overall cut quality, so the reality is that you can pick any of the options available and look like a hero, therefore there isn’t really a reason to choose one Signature Cushion cut diamond over another beyond the combination of carat weight, color and clarity. Brian Gavin has personally overseen the creation of every diamond featured in the Brian Gavin Signature and Brian Gavin Blue collections, to ensure that our customers are able to select an exceptional looking diamond with a single click of their mouse!

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