A 100-carat diamond in a classic emerald cut sold for just over $22 million at Sotheby's auction on Tuesday
After just three minutes of bidding, the final price was $22,090,000, including the buyer's premium. The seller and buyer both wished to remain anonymous, and the winning bid was received over the phone.
The estimate was between $28 - $35 million, giving it an approximate $190,000 per carat valuation.
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This is one of only six existing diamonds—D-color and internally flawless, Type 11a over 100 carats, and only classic emerald-cut white diamond of this color, clarity and size, to ever sell at auction
The original rough stone –weighing over 200 carats – was mined by De Beers in South Africa within the past ten years and is brand new to the market.
Gary Schuler, head of Sotheby's Jewelry, told CNBC's "Power Lunch" last month:
"The color is whiter than white…so transparent I can only compare it to a pool of icy water."
This class of diamonds is considered by many experts as the rarest object of natural beauty on the market.
In 2013, Christie's sold a 101.73 carat, pear-shaped, D-color, flawless, sold for $26.7 million – or $262,830 per carat. The buyer was Swatch Group's Harry Winston division, which dubbed the gem, The Winston Legacy.