Rare Old European Cut Diamond, Need Pricing Advise

[twan]

Hi,
I''m a jeweler who''s trying to do an appraisal for a customer that I’m going to sell a old European cut diamond w/ the original platinum mounting w/ 6 side diamonds around 20 pts and the ring weight 5.5 grams. I know OEC are usually 20-30% cheaper, but this one is the best that I''ve seen (in term of color, cut, and clarity). After I bought it, I thought about re-cutting it, but I changed my mine when I found out how much weigh I would loose (~20%) and I heard there is a market for this kind of diamonds, but I didn''t have time to search for it, figured I might catch someone who stopped by and like it as it is!

Specs.
Weight: 1.9 ct
Measurements: 8.16x8.13x4.71

Color: H color, the worst it might be is I, it looks better than a 1.22 GIA certified I that I have, but I have a GIA 0.76 H that''s a bit whiter.

Clarity: VVS+, I couldn''t find any flaw w/ 10x or 20x loupe
Table: ~ 45.5% (around 3.7mm)
Culet: Small or maybe medium
Girdle: Thin to Med
Flor: None
Crown angles: just a bit higher than the modern cut.
Polish and Sym: seemed to be VG

Can anyone tell me how much lower than the modern cut (%) I should appraise this diamond for?
Thank you

 

[blueroses]

I bet you will get some replies if you post this over on Rocky Talky!

 

[laughinggravy]

Absolutely, post your question on RockyTalky, I''m looking forward to hearing what they have to say. You may have to wait a little longer than normal since some experts will be catching up with their ''in-trays'' after Vegas.
Abi

 

[mrssalvo]

you can also contact Dave Atlas. He specializes in old stones and probably could give you an idea of it''s value.

here is a link to his website

 

[twan]

Thanks for the info,
I got my answer from Richard Sherwood.
I guess it''s a modern European cut!
Price about 20% below modern cut when trading with wholesaler, but who knows when trading w/ consumer. The larger spread makes it more desireble to some, 8.16x8.13 is larger than many modern 2 cts.
Take care,
Twan