1badgerfan
Rough_Rock
- Joined
- Feb 7, 2008
- Messages
- 4
I have bounced around the forums a little and read up a lot but I am having trouble making sense of something and I hope some of the experts here can help.
I am trying to find a high quality radiant cut stone for an engagment ring. I have done searches for a few weeks using the depth% and table% number for a class 1A as specified on the AGA website which seems to have pretty strict standards. In doing a search this way I found the following stone on Blue Nile.
1.11 Carat
F Color
VVS2
60.7 Depth %
65 Table %
11.4 Crown Height %
Slightly Thick Polished Girdle
Very Good Polish and Symmetry
Length to Width ration 1.02 - 6.07 x 5.96 x 3.62 mm
No cutlet or flourescence
All everything rates as 1A Ideal on the AGA DIY grading except the crown height which is a 1B premium making the diamond a 1A ideal cut. However, Blue Nile rates it as a Good cut vs their top for Radiant which is Very Good. Their reasoning is the following (from Customer Service):
"We have rated the diamond as a "Good" cut due to the depth percentage falling beneath a certain range. The depth and table percentages have the most impact on how a diamond will reflect the light that enters the stone, which dictates how much brilliance the stone will have. As a result we use these measurements to determine what the cut grade is. Here is the scale we use for radiant-cut diamonds: "
Very Good- Depth- 62% - 74% Table- 65% - 78%
Good- Depth- 56% - 77% Table- 63% - 80%
Any advice? It seems that the Blue Nile Rating system looks for a Depth and Table much higher than the AGA one.
I suppose I could always buy and return if I don''t like it. I just don''t know if anyone has seen this situation before. Thanks in advance for any advice.
I am trying to find a high quality radiant cut stone for an engagment ring. I have done searches for a few weeks using the depth% and table% number for a class 1A as specified on the AGA website which seems to have pretty strict standards. In doing a search this way I found the following stone on Blue Nile.
1.11 Carat
F Color
VVS2
60.7 Depth %
65 Table %
11.4 Crown Height %
Slightly Thick Polished Girdle
Very Good Polish and Symmetry
Length to Width ration 1.02 - 6.07 x 5.96 x 3.62 mm
No cutlet or flourescence
All everything rates as 1A Ideal on the AGA DIY grading except the crown height which is a 1B premium making the diamond a 1A ideal cut. However, Blue Nile rates it as a Good cut vs their top for Radiant which is Very Good. Their reasoning is the following (from Customer Service):
"We have rated the diamond as a "Good" cut due to the depth percentage falling beneath a certain range. The depth and table percentages have the most impact on how a diamond will reflect the light that enters the stone, which dictates how much brilliance the stone will have. As a result we use these measurements to determine what the cut grade is. Here is the scale we use for radiant-cut diamonds: "
Very Good- Depth- 62% - 74% Table- 65% - 78%
Good- Depth- 56% - 77% Table- 63% - 80%
Any advice? It seems that the Blue Nile Rating system looks for a Depth and Table much higher than the AGA one.
I suppose I could always buy and return if I don''t like it. I just don''t know if anyone has seen this situation before. Thanks in advance for any advice.