An important diamond solitaire ring, weighing 17.97 carats, leads the Fine Jewellery auction at Bonhams on December 6 at 11am in New York. With a strong interest from collectors across the globe during its October sale, Bonhams yet again presents an excellent selection of diamond, noteworthy coloured gemstones and a plethora of signed jewellery, many from the Alhambra Collection by Van Cleef & Arpels.
This leading lot is a cut-cornered rectangular step-cut diamond, with tapered baguette-cut diamond shoulders mounted in platinum (estimate U.S. $1,000,000-1,500,000). This "ice" is accompanied by a Type IIa letter indicating a negligent amount of nitrogen in the diamond; and to the laymen, adding the rare quality of appearing liquid, purest water. Other historical stones that possess this limpid quality of exception transparency are: the Cullinan; the Koh-i-Noor and the Hope Diamond.
A diamond and ruby necklace designed as an articulated, marquise, baguette and round brilliant-cut diamond ribbon (total diamond weight approximately 48 cts) is among the highlights of the sale. This piece simulates a scarf and is enhanced by fine unheated Burma rubies (estimate U.S. $100,000-150,000). Another fabulous diamond and unheated Burma ruby jewel is a bracelet by Tiffany & Co. with a total diamond weight of approximately 20.50 cts (estimate U.S. $50,000-70,000).
Also on the block is a very rare Kashmir sapphire and diamond ring by Shreve & Co. circa 1900. This sapphire (weighing approximately 6.90cts) exudes a rich saturated blue, and is accompanied by a laboratory certificate denoting "Classic" Kashmir (estimate U.S. $70,000-90,000).
Other highlights include:
- An Art Deco emerald and diamond brooch (pictured below), circa 1930; approx. emerald weight of 4.75 cts and total diamond weight of 17.50 cts; estimate U.S. $30,000-50,000
- An Art Deco emerald and diamond bracelet, Tiffany & Co., circa 1925; approx. emerald weight of 10.50 cts and total diamond weight of 22.00 cts; estimate U.S. $75,000-85,000
- A diamond bracelet, French; approx. total diamond weight of 30.00 cts; estimate U.S. $25,000-35,000 illustrates superior skill to create the unusual flexibility seen in this supple example.
Auction preview hours (free and open to the public): In Los Angeles, Nov. 18-20 from 12 - 5 p.m. PST. In New York, Dec 1-5 from 10 a.m. – 5 p.m. EST (12 to 5 p.m. on weekends).