Headlining the September 20th sale is a stunning oval-cut blue diamond. Weighing 3.81 carats, the Fancy Intense Blue diamond is accompanied by a GIA report and hails from a private British collection. It is estimated at £1,300,000-1,800,000 ($1,700,000-$2,300,000.)
Jean Ghika, Head of Jewelry for Bonhams UK & Europe, says: "Blue diamonds are extraordinarily rare and account for only 0.004% of all diamonds mined. This particular diamond is categorized as a Fancy Intense Blue with no modifying or secondary color. With so few blue diamonds coming to auction we are anticipating global interest."
Bonhams has a strong track record of selling blue diamonds and holds price-per-carat world auction records for both a Fancy Deep blue diamond at $1.77m per carat, and a Fancy Greyish-Blue diamond at $730,000 per carat.
Jean Ghika continues: "In recent years we have seen a growing demand from our global collectors for top quality colored diamonds and gemstones. We are looking forward to showcasing the blue diamond, the Kashmir sapphires and a number of our other selected lots in London, New York and Geneva during our pre-sale previews."
Information Courtesy of Bonhams.