1) The only stone of the three that I'd personally consider buying. I didn't see the GIA report at first but went back to see it. This stone's numbers fall within the range of ideal cut.
2) It is a little deep which is making it face up smaller than it should. Usually a .80 ideal cut stone will face up at about 6.0mm. The crown angle is high. A 35 to 35.5 crown angle would be safer with a 40.6 pavilion angle. The center could have some leakage. It is not as ideal as someone is telling you.
3) https://www.gia.edu/report-check?reportno=7286065389
This one is not too deep at 62% so it faces up with a good diameter. But it has a problem with the pavilion angle being 41.4 which doesn't work with a 34.5 crown angle. This one is definitely out.
Here are the ranges to aim for in GIA Excellent cut:
table: 55-58
depth: 62-62.3%
crown angle: 34-35.0 (up to 35.5 may work with a 40.6 pavilion angle)
Pavilion angle: 40.6-40.9
I have received some new diamond options today from a jeweller we are meeting with tomorrow night and would love your input. I’m almost certain two of the three are out but have attached anyway. Looking forward to your thoughts on this compared to previous option 1 (https://pck2.azureedge.net/stone-mu...a.htm?stoneId=1844770001&showMediaType=Video#)
LJ
Option 1:
0.81ct Round Brilliant Diamond
D colour
VS2 clarity
Excellent Cut
Excellent Polish
Excellent Symmetry
No Fluorescence
GIA graded and certified
Link to 20X Magnified Video: https://pck2.azureedge.net/stone-mu...ia.htm?stoneId=4870520044&showMediaType=Video
Set into a handmade, 18ct White Gold setting $7,443 AUD including GST
Option 2:
0.80ct Round Brilliant Diamond
D colour
VS2 clarity
Excellent Cut
Excellent Polish
Excellent Symmetry
No Fluorescence
GIA graded and certified
Link to 20X Magnified Video: https://pck2.azureedge.net/stone-mu...ia.htm?stoneId=5870520365&showMediaType=Video
Set into a handmade, 18ct White Gold setting $7,605 AUD including GST
Option 3:
0.90ct Round Brilliant Diamond
D colour
VS2 clarity
Excellent Cut
Excellent Polish
Excellent Symmetry
No Fluorescence
GIA graded and certified
Link to 20X Magnified Video: https://pck2.azureedge.net/stone-mu...ia.htm?stoneId=8870600368&showMediaType=Video
Set into a handmade, 18ct White Gold setting $8,498 AUD including GST