FOX NEWS: Flawless 102-carat diamond to be auctioned at Sotheby's, might be most expensive ever sold online

Flawless 102-carat diamond to be auctioned at Sotheby's, might be most expensive ever sold online



The 102.39-carat D Colour Flawless Oval Diamond could fetch between $10 million and $30 million, Sotheby's estimates.