performance?

[blingymo]

What would you say about possible performance of a RB diamond with a 61% table, 61% depth? I don't have any angles. Is it too far off "ideal" to be a good performer? Or can you not tell anything without more info?

 

[Garry H (Cut Nut)]

As the table size gets larger the depth aught be shallower - so this stone needs to have a fairly thick girdle to have OK performance in terms of optimum crown and pavilion angle.

Keep looking?

 

[blingymo]

Thanks for responding Garry. I'm going to look at it tomorrow, and will take it to be evaluated by Michael Cowing. Hopefully he can tell me more, but I want to go in not looking too stupid which I am! We'll see what happens - what would the effect be of the 61/61 measurements?

 

[mcosme]

As the table size gets larger the depth aught be shallower - so this stone needs to have a fairly thick girdle to have OK performance in terms of optimum crown and pavilion angle.

Keep looking?

Could a stone with a larger table than depth potentially work?
e.g.
http://www.zoara.com/diamonds/p_round_excellent_cut_k_si1#p=1445265

Thanks