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demantoid garnet
11 juillet 2017

A black opal, demantoid garnet, sapphire and enamel necklace, by Louis Comfort Tiffany, Tiffany & Co

A black opal, demantoid garnet, sapphire and enamel necklace, by Louis Comfort Tiffany, Tiffany & Co
Lot 184. A black opal, demantoid garnet, sapphire and enamel necklace, by Louis Comfort Tiffany, Tiffany & Co. Estimate: USD 90,000 - USD 120,000. Price realised USD 118,750. © Christie's Images Ltd 2017 Suspending a drop black opal cabochon pendant,...
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20 juin 2017

A rock crystal, demantoïd garnet, sapphire and gold pair of ear clips by René Boivin, circa 1980

A rock crystal, demantoïd garnet, sapphire and gold pair of ear clips by René Boivin, circa 1980
Lot 117. A rock crystal, demantoïd garnet, sapphire and gold pair of ear clips by René Boivin, circa 1980. Estimation :5 000 € / 7 000 € . Photo: Tajan ls sont formés de deux arcatures de cristal de roche, ornées au centre d'un saphir ovale. Monture en...
14 août 2015

Garnets

Garnets
All species of garnets possess similar physical properties and crystal forms, but differ in chemical composition. The species names are pyrope, almandine, spessartine, grossular, uvarovite and andradite. Malaia Garnet is one of the most beautiful gemstones...
9 mai 2015

Rare natural pink Sapphire on offer in gems auction at Bonhams

Rare natural pink Sapphire on offer in gems auction at Bonhams
Exceptional and Rare 24.69 carats Natural Pink Sapphire, Classic TM Ceylon (Sri Lanka). Estimate on request. Photo: Bonhams. LOS ANGELES, CA .- An exceptional and rare natural pink sapphire that is among the finest the market has seen in the last decade...
22 avril 2014

Bonhams in Los Angeles selling largest ruby crystal ever offered at auction in gems sale

Bonhams in Los Angeles selling largest ruby crystal ever offered at auction in gems sale
Collection of 27 Rhodochrosites--"Red Gold" from the Kalahari. N'Chwaning 1 Mine, N'Chwaning 2 Mine, Hotzatel Mine, Wessels Mine, Black Rock Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Estimate US$ 200,000 - 250,000 ( €140,000...
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29 août 2013

Andradite Garnet, Demantoid Garnet,

Andradite Garnet, Demantoid Garnet,
Blue-Green Andradite Garnet; From Quebec, Canada -reported in 2010. Note - these as far as I know are not the color change blue garnets. Size 2.7 x 2 x 1.3 cm. Photo by Rob Lavinsky, iRocks.com - image lic. under CC-BY-SA-3.0 Demantoid garnet from Madagascar....
2 juin 2013

Demantoid Garnet - 4.21 ct, Russia

Demantoid Garnet - 4.21 ct, Russia
Demantoid Garnet - 4.21 ct, Russia. Photo Heritage Auctions There's something about the Russian version of this exotic Garnet that sets it apart from all other localities. The Russian material contains enough Chromium in its structure to give it a clean...
28 mai 2013

A Pair of Art Deco Ruby, Demantoid Garnet and Diamond Ear Pendants

A Pair of Art Deco Ruby, Demantoid Garnet and Diamond Ear Pendants
A Pair of Art Deco Ruby, Demantoid Garnet and Diamond Ear Pendants. Photo Christie's Image Ltd 2013 Designed as a fruiting bough, each single ruby cabochon top to a demantoid garnet flowerhead and marquise-cut diamond line, flanked by black enamel branch...
28 mai 2013

 An Emerald, Demantoid Garnet and Diamond Bangle  

 An Emerald, Demantoid Garnet and Diamond Bangle   
An Emerald, Demantoid Garnet and Diamond Bangle. Photo Christie's Image Ltd 2013 Designed as two conjoined circular panels one centred by an octagonal-cut emerald weighing approximately 6.72 carats to a pavé-set brilliant-cut diamond surround, the other...
11 avril 2013

Gold, Demantoid Garnet and Diamond Ring

Gold, Demantoid Garnet and Diamond Ring
Gold, Demantoid Garnet and Diamond Ring - Sotheby's Centered by a round demantoid garnet weighing 7.66 carats, framed by 12 round diamonds of light brown hue weighing approximately 4.20 carats and flanked by two baguette diamonds weighing approximately...
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