Star sapphire

The "100 Carats Club". Star Sapphire-"A Member of the 100 Carats Club", Mogok, Burma. Photo Bonhams. This large, near-circular cabochon sapphire possesses a light to medium "denim" blue hue with a well-polished dome of medium height. The asterism is strong and central. Weighing approximately 110.25 and measuring 26.0 x 24.5 x 15.0mm. Estimate US$ 11,000 - 15,000 (€8,000 - 11,000) Accompanied by an Asia Glory Gemmological Laboratory of Myanmar report no. 012165 dated November 23, 2013 stating that the natural star sapphire,... [Lire la suite]

Star sapphire, Sapphire and diamond ring. Photo: Sotheby's Set with an oval cabochon star sapphire weighing 35.86 carats, amid a conforming basket pavé-set with circular-cut sapphire and brilliant-cut diamonds, the sapphires and diamonds together weighing approximately 1.10 and 1.15 carats respectively, mounted in 18 karat blackened gold. Ring size: 5½. Estimation 180,000 — 250,000 HKD Accompanied by GRS report numbered GRS2013-078608, dated 18 July 2013, stating that the 35.86 carat star sapphire is natural, of... [Lire la suite]

18 karat white gold, pink star sapphire and diamond ring, Sifen Chang. Photo: Sotheby's. The oval cabochon pink star sapphire weighing 37.02 carats, framed and accented by round diamonds weighing 1.82 carats, size 5¾, with Chinese characters for Sifen Chang. Estimation 20,000 — 30,000 USD  Accompanied by Gübelin report no. 12011017 stating that the sapphire is natural, with no indications of heating. Sotheby's. Important Jewels. New York | 24 sept. 2013 - http://www.sothebys.com

Star sapphire and diamond ring - Sotheby's.   Set with a star sapphire between shoulders set with brilliant-cut and baguette diamonds, size 52½, numbered. Estimate: 4,000 - 6,000 GBP Sotheby's. Jewels. London | 11 Apr 2013 www.sothebys.com

18 Karat Gold, Star Sapphire and Diamond Ring - photo Sotheby's Centered by a round star sapphire measuring approximately 15.2 by 9.7 mm, flanked by eight small round diamonds, size 4, signed Yard. Estimation: 15,000 - 20,000 USD Sotheby's. Important Jewels. New York | 07 févr. 2013 www.sothebys.com

An Art Deco platinum, star sapphire and diamond bracelet. Photo Christie's Image Ltd 2013 The central collet-set cabochon star sapphire to a pierced, articulated panel of geometric design millegrain-set with old single-cut diamonds, between diamond pierced panel articulated shoulders each set in the centre with an old brilliant-cut diamond collet, to a brilliant and baguette-cut diamond articulated tapering back, circa 1925, 17.0cm long. Estimate: £5,000 - £7,000 Christie's. Jewellery.16 January... [Lire la suite]

An Art Deco Sapphire and Diamond Sautoir, by Bulgari. Photo Christie's Image Ltd 2012 The baguette and circular-cut diamond geometric pendant centering upon a star sapphire, suspended from a sautoir composed of cabochon sapphire and diamond cluster panels with diamond collet connecting links, detaches to form three bracelets, mounted in platinum and gold, 1930s, sautoir 70.5 cm, pendant 6.5 cm, bracelets 18.2, 18.2 and 19.0 cm. Signed Bulgari. Estimate CHF300,000 - CHF500,000 Provenance: Christie's... [Lire la suite]

The Star of Bombay The Star of Bombay is a remarkable 182-carat star sapphire bequeathed by Mary Pickford. It is part of the gem and mineral collections of the Smithsonian's National Museum of Natural History.

Sapphire and Diamond ring  Photo Sotheby's The ring centring on an antique cushion-shaped sapphire weighing 10.40 carats, flanked on each side by a cushion-shaped diamond weighing 2.41 and 2.07 carats respectively, mounted in platinum. ESTIMATE 6,500,000-8,000,000 HKD - Lot Sold: 10,180,000 HKD Ring size: 6 Accompanied by SSEF report numbered 59268, dated 7 April 2011, stating that the 10.40 carat sapphire is natural, o Kashmir origin, with no indications of heating. Further accompanied by GIA reports numbered... [Lire la suite]

  Platinum, Star Sapphire And Diamond Ring, Circa 1930. Photo Sotheby's The cabochon star sapphire weighing approximately 84.00 carats, flanked by triangular-shaped diamonds weighing approximately .90 carat, size 5¾. Estimate 15,000-20,000 USD Sotheby's. Magnificent Jewels, New York 20 september 2011 www.sothebys.com