I know how outrageous this post is going to seem. Please trust that after all the years I was in the gem and jewelry industry, I wouldn't bother you all about this if I wasn't sure what I'm seeing. I'm currently working as a screenwriter, and we have a financier who is looking to sell or collateralize a collection of diamonds. Okay, I know diamonds, and we know some people who might be interested in the deal that we can make introductions to. Here's the thing: I've never seen or heard of a collection like this. It's 25 D Flawless or IF stones, ranging from 8.63 - 120.80 cts, with insurance appraisals close to $400 million USD. I've seen .pdfs of GIA certs for all of them - but some have the cert numbers covered (red flag #1). Those that aren't covered check out on the GIA website. Also, the seller has yet to explain where this collection came from (red flag #2). He has some Kimberley Process Certs, but isn't sure he has them for all the stones (red flag #3). He does have SKRs for all of them, currently located in the UK and Israel. Actually, I suppose one individual, even a wealthy one in the art industry, owning all these huge diamonds is also a red flag.
Given who this person is, and the lack of serious concern from our contacts who are interested and have the money to do the deal, I do think these diamonds are what they purport to be. But I also think there's something sketchy about them. I'd be interested in hearing opinions from those of you who know this very high-end part of the gem business.
(still a jewelry dabbler, but mostly a writer these days)