Currently on eBay is a half carat diamond apparently made from authenticated hair from Elvis. The fallowing is took from the listing.
You are bidding on the ONLY .5 ct Blue, Round Cut, Cultured Diamond that will be created from the actual hair containing the mitochondrial DNA of Elvis “The King” Presley. The hair samples being used are a combination of two separately authenticated samples acquired from two different reputable sources as a way to ensure authenticity. Each diamond will come with numerous documents and certifications of authenticity. The hair sample will be reduced to it's basic element…carbon and a real diamond will be created using the HPHT process (high pressure high temp.). Cultured Diamond are real diamonds exhibiting the same identical properties of naturally mined diamonds. The Elvis Diamond will be laser engraved along the girdle with an identity number and Elvis “The King” Presley.
Bids start at $50,000 and is expected to go for as much as $300,000. I guess in a way it is kind of cool. It does not really appeal to me. No way in hell I would pay that money for it. A lot of other Elvis stuff I could buy for that money that would please me more.