Any further info before you drop some money on that?
Ask Jim at DCD if he can get you a Sarin on it to see crown height, or better yet a BrilliantScope image. If not, perhaps you can go see the stone in person before buying?
1) crown height
2) pavillion angle
3) crown angles
4) what it looks like under a BrilliantScope
5) visually, does it have a fisheye, or deadzones?
6) What does the fire, scintillation and sread look like?
The last three are trickier, but the first three can come from a Sarin report, which they may be able to provide you with. My suggestion is to try to see it in person, if you have not already. Have other stones next to it to compare it to with lareger tables, larger depths, different Depth to table ratios, and see which you like most.
Speak to them to see what further information is possible and if you can see stones in person, either through them or an appraiser.
Otherwise the numbers on a GIA are helpful but NOT conclusive to determine optimin diamond optics!
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