Is Christie’s tempted by a 5 ct. lab-grown blue?
Earlier this year, we had news out of Russia about a 5 ct. blue polished diamond.
Given the rarity of blue diamonds, the auction houses would normally jump at that stone. Except in this case it was grown by New Diamond Technology. And while it is as rare as any natural blue—at this point, it is arguably rarer—we probably shouldn’t expect coming to the block at Christie’s any time soon. (Sotheby’s did not return a request for comment.)