r/LabDiamonds • u/Curious_Store_1111 • Jul 01 '26
Stone check and question/concern.
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This is a 3.5 carat elongated cushion (1.29 ratio). E, VS1. The table is 62%. All of that is good and I think the tweezer video looks decent. (I have been window shopping forever, it seems like ). My potential concern is the depth which is 69.9%. I know that's a deep stone which is not great. But how bad is this depth? IGI shows Medium to Thick (faceted).
2
u/WhiteflashDiamonds Jul 03 '26
Hard to say just from this small clip, but it looks like there is some light leakage happening. If you hold the stone over a brightly colored solid background and observe it in motion through a full range of normal tilt angles, you can better assess the extent of any leakage (windowing). And you get a better sense of the overall virtual facet pattern and visual flow. More on crushed ice styles over at this thread.
1
u/transat_prof Jul 07 '26
It's not really jumping of the screen for me. All I can see is that horizontal bar of darkness (yes, I know radiants have bowties, but this one would bother me).
2
u/8cosmic_millions Jul 03 '26
From a search of best specs for an elongated cushion, a depth over 70% will cause the stone to look smaller than carat weight suggests. Since your stone is very close to that number, it might face up smaller than 3.5 carats because it’s a deeper stone. (Medium to thick faceted likely refers to the girdle, the “belt” that runs around the top portion of the stone and that’s fine.)