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Thoughts on this 1.17 I SI1

DJ112

Rough_Rock
Joined
Dec 24, 2015
Messages
15
Hi Everyone!

I would love feedback on this stone that we're considering: eye-clean triple x 1.17 I S1. HCA= 3.7

Thanks in advance! :)

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screen_shot_2016-09-08_at_2.png
 

ac117

Ideal_Rock
Premium
Joined
Apr 28, 2014
Messages
3,748
Hello! That stone would be a definitely pass. The angles aren't complimentary so it will likely be a poor performer. Keep in mind that all diamonds look nice and sparkly under jewelry store lights. It's in other lighting conditions that the poorly cut ones looks like duds.

The GIA Excellent cut range is broad, and some stones are much better than others. These are measurements to help you stay in ideal cut territory with a GIA excellent cut stone. You did the right thing by putting the numbers into the HCA but you should be looking at stones that score < 2 (keeping in mind that a .8 isn't better or worse than a 1.8 ).

table: 54-58
depth: 60-62.3
crown angle: 34-35.0
pavilion angle: 40.6-40.9 (sometimes 41.0 if the crown angle is close to 34)

Or you could post your budget/desired specs and let us help you look! :wavey:
 

gm89uk

Brilliant_Rock
Premium
Joined
May 26, 2015
Messages
1,449
Just a tip, I noticed you used the percentages for HCA. When using HCA, use the angles rather than the percentages (as they are less rounded) to give you more accurate results.
 
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