NEW YORK - Bonhams Fine Jewellery auction on December 9 will feature a rare, unmounted modified pear cut diamond, weighing 17.82 carats, and estimated to fetch between $1,000,000-1,500,000. As a type IIa diamond, the breathtaking stone is not only beautiful, it is also scientifically extraordinary.
Scientists classify diamonds into two types, based on the presence or absence of nitrogen in the diamond's atomic structure. Type II diamonds contain little - if any - nitrogen, and make up less than 2% of the world's diamonds. Type IIa diamonds, such as the one on offer, are considered the most chemically pure of all diamonds, and often have exceptional optical transparency.
"This diamond comes to us from a private collection and has a limpid, watery quality that is very important to true connoisseurs," explained Susan Abeles, Bonhams Head of US Jewellery.
Outstanding diamonds sparkle throughout the sale. Especially notable is the rainbow array of coloured diamonds on offer, including a rare fancy intense blue diamond ring from a private collection, weighing approximately 1.12 carats (est. $100,000-150,000). Also available are a natural very light pink diamond ring, weighing 5.07 carats (est. $275,000-300,000) and a fancy light yellow diamond ring, weighing 7.79 carats (est. $60,000-80,000).
Highly sought-after signature diamonds also feature prominently in the sale. A diamond solitaire ring by Harry Winston centering a pear-shaped diamond, weighing 5.05 carats will be on offer (est. $225,000-350,000), as well as a diamond and sapphire necklace from Van Cleef & Arpels (est. $70,000-90,000). A jade, diamond and eighteen karat gold brooch by David Webb is sure to attract attention (est. $50,000-70,000), as will a pair of diamond earclips from Bulgari, featuring alternate gem-set and diamond drops (est. $30,000-50,000) - just one of a fine selection of gorgeous Bulgari pieces available.
On the heels of Bonhams remarkable results for sapphires in October Fine Jewellery auction, the December sale includes many extraordinary pieces featuring the precious stone. The most remarkable is an important Burmese sapphire ring weighing 38.71 carats (est. $550,000-750,000). A 18.57 carats sapphire and gold pendant fragment is also available (est. $55,000-75,000).
Additional gemstone treasures in the auction include a rare Burmese ruby necklace composed of three strands of graduated beads (est. $150,00-180,00) and a ruby and diamond ring from Van Cleef & Arpels, centering a cushion-cut ruby, weighing 3.77 carats (est. $80,000-100,000).
"The December 9 sale features splendid diamonds and the finest gemstones. It's the ideal opportunity to find the perfect holiday gift for someone truly special," said Virginia Salem, the Director of the Jewellery Department in New York.
Bonhams Fine Jewellery auction will take place on December 9 in New York. The auction will preview at Bonhams San Francisco November 15-17, Bonhams Los Angeles November 22-24, and at Bonhams New York from December 5-8.
A complete catalogue is available at www.bonhams.com/auctions/21035/
NOTES FOR EDITORS
Bonhams, founded in 1793, is one of the world's largest auctioneers of fine art and antiques. The present company was formed by the merger in November 2001 of Bonhams & Brooks and Phillips Son & Neale. In August 2002, the company acquired Butterfields, the principal firm of auctioneers on the West Coast of America. Today, Bonhams offers more sales than any of its rivals, through two major salerooms in London: New Bond Street and Knightsbridge; and a further three in the UK regions and Scotland. Sales are also held in San Francisco, Los Angeles, Carmel, New York and Connecticut in the USA; and Germany, France, Monaco, Hong Kong and Australia. Bonhams has a worldwide network of offices and regional representatives in 25 countries offering sales advice and valuation services in 60 specialist areas. For a full listing of upcoming sales, plus details of Bonhams specialist departments go to www.bonhams.com