platinum

A platinum, aquamarine and diamond necklace. Photo: Christie's Images Ltd. 2011 Designed as a fringe of five graduated drop-shaped aquamarine pendants suspended from marquise and brilliant-cut diamond floral clusters to the scalloped diamond neckchain, 44.5cm long, with London hallmarks for platinum. Estimat£26,000 - £30,000  ($42,692 - $49,260) An 18 carat gold, aquamarine and diamond necklace. Photo: Christie's Images Ltd. 2011 Designed as a series of oval-shaped aquamarine and diamond floral clusters, interspersed by... [Lire la suite]

Platinum, Carved Jadeite and Diamond Brooch, Circa 1925.  Photo Sotheby's Set with an oval pierced plaque of brilliant emerald green color, carved in a relief of flower and peach motif, within a platinum frame set with baguette and old European-cut diamonds. Estimate 9,000—12,000 USD. Lot Sold 22,500 USD Platinum, Jadeite and Diamond Brooch, Black Starr & Frost, Circa 1925. Photo Sotheby's Composed of carved jadeite plaques of foliate design, set in the center with a marquise-shaped diamond weighing approximately .75... [Lire la suite]

Platinum, Opal, Rock Crystal and Diamond Necklace, Tiffany & Co., retailed by Bailey, Banks & Biddle, first half 20th Century. photo Sotheby's The graduated single-strand composed of opal beads measuring approximately 13.6 to 6.2 mm., spaced by faceted rock crystal rondelles measuring approximately 7.5 to 3.9 mm., the clasp set with old European-cut diamonds weighing approximately .15 carat, length 19 inches, partially obscured signature for Tiffany & Co., signed BBB, numbered 91546. Estimate 20,000—30,000 USD. Lot... [Lire la suite]

Platinum, Black Opal and Diamond Pendant-Necklace, Marcus & Co., Circa 1910-1915. photo Sotheby's The pendant set with an ovoid black opal measuring approximately 36.0 by 24.5 by 5.1 mm., within a garland-style mounted set with old European-cut and single-cut diamonds, completed by a platinum chain set with old European-cut diamonds, the clasp set with single-cut diamonds, total diamond weight approximately 1.50 carats, length 18½ inches, signed Marcus. Estimate 5,000—7,000 USD. Lot Sold 53,125 USD NOTE: The necklace... [Lire la suite]

Pair of Platinum, Black Jade and Diamond Pendant-Earrings, Tiffany & Co..  photo Sotheby's Composed of black jade segments alternating with bands of small round diamonds, signed Tiffany & Co. Estimate 5,000—7,000 USD. Lot Sold 12,500 USD Sotheby's. Important Jewels, 02 Feb 11, New York www.sothebys.com

Platinum, Gold, Citrine, Jade and Diamond Pendant-Necklace. photo Sotheby's The pendant set with an octagonal-shaped citrine weighing approximately 170.00 carats, surmounted by an openwork plaque set with old European-cut diamonds weighing approximately 1.20 carats, accented by jade beads, suspended from a black silk cord, length 23 inches. Estimate 5,000—7,000 USD. Lot Sold 16,250 USD Sotheby's. Important Jewels, 02 Feb 11, New York www.sothebys.com

Pair of Platinum, Jadeite, Diamond, Onyx and Enamel Pendant-Earrings. photo Sotheby's Set with carved jadeite segments of floral design, framed by black enamel and accented by old European-cut and rose-cut diamonds, spaced by onyx cabochons and old European-cut diamonds, total diamond weight approximately 1.50 carats. With fitted box. Estimate 7,500—10,000 USD. Lot Sold 16,250 USD Platinum, Gold, Jadeite and Diamond Necklace, Circa 1935. photo Sotheby's Composed of carved jadeite segments of floral and foliate... [Lire la suite]

Jadeite, Diamond, Onyx and Enamel Pendant-Necklace, Circa 1925. photo Sotheby's The pendant composed of a carved jadeite plaque, circa 1900, depicting scholar's ornaments and auspicious emblems, surmounted by a geometric platinum openwork plaque set with single-cut diamonds weighing approximately 1.05 carats, and onyx tablets, suspended from a white gold chain composed of jadeite beads measuring approximately 4.5 mm, and white gold links applied with black enamel, length 20 inches. Estimate 5,000—7,000 USD. Lot Sold 12,500 USD ... [Lire la suite]

18 Karat White Gold, Rubellite and Diamond Necklace, Michele della Valle. photo Sotheby's The articulated graduated necklace set with cushion-shaped rubellites weighing a total of 274.33 carats, accented by small round diamonds weighing 28.34 carats, length 15 inches, signed Michele della Valle, numbered 100746. Est. 90,000—120,000 USD. Lot Sold 128,500 USD Pair of 18 Karat White Gold, Rubellite and Diamond Pendant-Earclips, Michele della Valle. photo Sotheby's The tops designed as clusters set with... [Lire la suite]

18 Karat Gold and Diamond Necklace, Sterlé, Paris, Circa 1960. photo Sotheby's Composed of graduated ribbon-like gold links, set at the front with round diamonds weighing approximately 2.40 carats, length 15 inches, signed Sterlé, Paris, numbered 4056, maker's mark, French assay marks. Est. 12,000—15,000 USD. Lot Sold 15,000 USD 18 Karat Gold, Platinum and Diamond Bow-Knot Bracelet, Sterlé, Paris, Circa 1950. photo Sotheby's The stylized bow-knot composed of gold links, accented by rectangular platinum plaques set... [Lire la suite]