24 juin 2011

White diamonds @ Christies's. Important Jewels, 14 June 2011, New York

An impressive diamond ring.Photo: Christie's Images Ltd. 2011 Set with an oval-cut diamond, weighing approximately 46.51 carats, flanked on either side by a pear-shaped diamond, weighing approximately 1.00 and 1.01 carats, mounted in platinum. Estimate $2,500,000 - $3,500,000 - Price Realized $4,226,500   With report 5131361767 dated 22 April 2011 from the Gemological Institute of America stating that the oval-cut diamond is E color, VVS2 clarityWith reports 12344176 and 12038592 dated 3 January 2003 and 28 May 2002... [Lire la suite]
01 janvier 2011

Chrysoberyl, Tourmaline, Demantoid garnet, Conch pearl, yellow sapphires, amethyst & blue topaz @ Sotheby's

Chrysoberyl brooch , probably Portuguese, second ahalf of the 18th  century. photo Sotheby's Designed as a floral and foliate spray tied with a ribbon, set with foil backed cushion-, pear-shaped, oval and mixed-cut chrysoberyl, later brooch fitting, accompanied by original shaped tooled leather case. Est. 5,500—6,500 GBP. Lot Sold 20,000 GBP Tourmaline, enamel and diamond brooch, J.E.Caldwell & CO., 1920s. photo Sotheby's Of annular open work design, centring on a stylised violet the petals of cabochon... [Lire la suite]
19 novembre 2010

Sapphire jewelry @ Sotheby's Geneva

Attractive Sapphire and diamond ring, Faraone, circa 1970. photo courtesy Sothebys Centring on an octagonal sapphire weighing 12.76 carats, within a ballerina setting of baguette and tapered baguette diamonds, the shoulders set with similar stones, mounted in platinum, Italian assay and maker's marks, size 50, with ring sizer. Est. 200,000—300,000 CHF. Lot Sold 722,500 CHF Accompanied by Gübelin report no. 1007141 stating that the sapphire is of Kashmir origin, with no indications of heating. Fine Sapphire and... [Lire la suite]