fox29.com
45%
514
One of world's purest pink diamonds is expected to sell for $21 million at auction
LONDON - A rare, dazzling pink diamond is expected to sell for an estimated $21 million when it goes up for auction in October, officials said. The 11.15-carat cushion-shaped stone, called the "Williamson Pink Star," was described by auction house Sotheby’s as "one of the world’s purest, most saturated pink diamonds." The diamond was named after two other notable pink diamonds, including the record-breaking CTF Pink Star, a 59.60-carat oval mixed-cut diamond, which sold in 2017 for $71.2 million. The Williamson Pink Star was also named in homage to the celebrated "Williamson" stone, a cut diamond of 23.60-carats given as a wedding present to Queen Elizabeth II in 1947. It was gifted to the queen by Canadian geologist and royalist, Dr.