tourmaline

Fluorite - Okorusu Mine, Namibia Dioptase - Tsumeb Mine, Namibia Opal Aura Quartz - Arkansas The unique colors come from a thin layer of platinum, which is molecularly bonded to the quartz Tourmaline - Golconda Mine, Minas Gerais, Brazil Iridescent Hematite - Elba Island, Tuscany, Italy Rhodochrosite - N’Chwaning, South Africa. (Images by courtesy of Bijoux et Minéraux)

10.82 ct asymmetrical tourmaline

Asprey. A Suite of Multi-Gem Jewelry. Photo Phillips. Comprising a necklace, designed as a line of oval and circular-cut amethyst, blue-topaz, peridot, citrine and tourmaline; and a pair of earclips and ring en suite, mounted in 18K white gold, necklace length 15 3/4 inches, earclips length 1 inch, ring size 7. Signed 'Asprey' 'Italy'. Estimate $13,000 - 18,000 Phillips. JEWELS NEW YORK 30 APRIL 2014 10AM - http://phillips.com/

Amethyst. Elestial Ametrine - Bolivia; Kyanite and Quartz - Brazil. Orange Quartz (iron oxide inclusions) - Orange River, South Africa.   Elbaite Tourmaline - Paprok, Afghanistan.

Gold and diamond ring featuring a 3.18ct center stone. Chaumet. Gold, diamond and 5.29ct tourmaline ring. Chaumet. A 6.42-carat emerald center stone in this Liens ring. Chaumet. A 5.29-carat Padparadscha sapphire ring. Chaumet. A new Chaumet Liens collection ring featuring a 3.41-carat yellow diamond.

Lot de trois ornements de parure et de coiffure, Chine, dynastie Qing, XVIIIe-XIXe siècles. Photo courtesy Tajan. en argent rehaussé de plumes de martin-pêcheur, jade néphrite céladon pâle, jadéite, tourmaline et corail, en forme d’un vase empli de fleurs ou, pour l’épingle trembleuse, à décor d’un bouquet de fleurs animé d’un papillon. Poinçons insculpés aux revers. (Quelques accidents et manques). Haut. (max) 18 cm. Estimation : 600 € / 800 € Tajan. Arts d'Asie. 03 Avril 2014 à 10h - www.tajan.com

Fine Chinese carved tourmaline archer's ring, Qing dynasty. Photo Freeman's Circular cross section retaining its organic form at bevelled edges, carved in low relief with fu bats among clouds. D: 1 1/4 inches. Estimate $1,000-1,500  Freeman's. ASIAN ARTS. Saturday, March 15 at 10am - www.freemansauction.com

  Shattuckite. Kandesei, Kaokoveld Plateau, Kunene Region, Namibia   Shattuckite, Namibia.   Shattuckite and Malachite   Bi-colour Tourmaline Group of polychrome Elbaite crystals with Smoky Quartz This stunning specimen was mined by Pala at the Tourmaline Queen mine in 1972. Today it is on public display at the Smithsonian Institution in Washington, DC. Among the many discoveries at the Tourmaline Queen, one stands out—the “Blue Cap Pocket,” which was later referred to as the find of the... [Lire la suite]

Tourmaline Pink Tourmaline Tourmaline Bluish-green Tourmaline

Tourmaline, rock crystal and diamond brooch and a ring, Boucheron, circa 1935. Photo courtesy Sotheby's Each composed of rock crystal carved in an architectonic design, the brooch centring on a circular-cut tourmaline, the mounting highlighted with similarly cut diamonds, signed Boucheron, French assay and partial maker's marks, the ring featuring a pear-shaped tourmaline, size 53, pouch stamped Boucheron. Estimation  9,500 — 14,000 CHF  Sotheby's. Magnificent Jewels. Genève | 13 nov.... [Lire la suite]