Need help calculating depth percentage of oval diamond

[Randy Top]

I''m looking into an oval diamond I found at a local store.
I have some information, but not all of it.
Overall I''m trying to figure out if this is a good diamond or not.

Oval .71 vs1 G
Good polish Good Symmetry
Length = 6.47
Width = 4.58
Deep = 3.4

I know I need depth%, table% and girdle.

I know depth% = height (I assume the deep measurement equals height) divided by width.
That would equal 74% which is not good at all.
I just don''t know if length plays into in anyway.

If the 74% is right, would you stay away just from that alone?
I''m pretty sure that signifies a very poor cut diamond.


Thanks for any help

 

[Dreamer_D]

Even with those additional numbers we cannot help you much with assessing cut quality on a facy shape without photos and an ASET image ideally. Can you get either of those?

 

[Tom Gelb]

I agree, but for your information, your depth % methodology is correct.

Good luck

 

[Lorelei]

Date: 3/14/2010 3:01:54 PM
Author: dreamer_d
Even with those additional numbers we cannot help you much with assessing cut quality on a facy shape without photos and an ASET image ideally. Can you get either of those?

Ditto Dreamer. Also what is the table percentage and have you compared many ovals in person? What type of grading report does the diamond have?