<p>Lareef, thanks once again for sharing your inputs.</p> <p>I can share the images and copy of certificate with you via email. Ple...

Surprisingly Sotheby's HK, Geneva and New York offices think they don't have a market for such a stone!!

Apologies for the delayed response, am not getting email notification for the reply/posts, hence missed this reply. I can share the Gubelin certifica...

What would be the approximate valuation of a Star Blue Sapphire, origin from Sri Lanka and a size of 510 carat? Would appreciate your inputs.