That's interesting. I wonder if the same opportunity available to Sotheby's is also available to your average diamond consumer (minus a reasonable handling fee

That's interesting. I wonder if the same opportunity available to Sotheby's is also available to your average diamond consumer (minus a reasonable handling fee). I.E. If I go buy a Diamond for $1000, And Sotheby's sells it second hand for, let's say, $750, could I sell it to Sotheby's for $500? I'd be interested in hearing what mechanisms exist for your average consumer to sell a diamond. There is quite an active market for second hand Gold, and the handling fees are quite reasonable. My understanding, from everything I've read, is that such a market does not exist for Diamonds.