Sotheby's Unveils Rare 'Perfect' 100-Carat Diamond

  • NEW YORK, New York
  • /
  • February 16, 2015

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100-carat diamond to be offered at Sotheby's New York on April 21, 2015. It is expected to fetch $19 million to $25 million.

Sotheby’s unveiled a diamond unlike any offered before: an extraordinary 100-carat perfect diamond in a classic Emerald-cut. The remarkable 100.20-carat, D color, Internally Flawless, Type IIa stone will highlight Sotheby’s Magnificent Jewels auction in New York on April 21, 2015, when it is estimated to sell for $19-25 million.

At this impressive scale, diamonds of this exceptional quality – D color and Internally Flawless clarity – are incredibly rare, and are considered ‘perfect’. The present example joins an elite group of just five comparable-quality diamonds over 100 carats that have ever been sold at auction worldwide. What distinguishes the present example within this rarefied league is its beautiful shape: it is the largest perfect diamond with a classic Emerald-cut ever to be offered at auction. This modern shape gives the stone an unforgettable presence, whether it is worn as a jewel or admired on its own.

The original rough – weighing over 200 carats – was mined by De Beers in southern Africa. The current owner spent over one year studying, cutting and polishing the rough diamond to deliver the spectacular stone. The diamond will be exhibited in Dubai, Los Angeles, Hong Kong, London and Doha, before returning to New York for exhibition beginning April 17.

Lisa Hubbard, Chairman of North & South America for Sotheby’s International Jewelry Division, said: “The rarest object of natural beauty on the market right now, this 100-carat diamond could be considered the ultimate acquisition. Simply put, it has everything you could ever want from a diamond: the classic shape begs to be worn, while the quality puts it in an asset class of its own.”

Since 1990, when Sotheby’s sold the first 100-carat perfect diamond at auction, until the most recent example in 2013, the price per carat for these stones has increased from $125,000 to $260,000. The present stone’s low estimate of $19 million represents a valuation of $190,000 per carat.

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