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Unmounted cushion-shaped diamond.  Sold at Christie's Geneva, November 13, 2012.

Archduke Joseph Diamond, an unmounted cushion-shaped Golconda diamond weighing carats with a D colour and internally flawless clarity.

110-carat. The Cullinan Yellow Asscher-cut Diamond. This glorious yellow diamond originated in South Africa, making its way to the British crown jewels in 1907 under King Edward VII.

The Cullinan Yellow Asscher-cut Diamond of 110 carats. This glorious yellow diamond originated in South Africa, making its way to the British crown jewels in 1907 under King Edward VII.

Potemkin Diamond (Russian Crown Jewels), also belonged to Empress Eugenie, oval-shaped brilliant diamond, perfectly cut, and weighing 51 carats.

Potemkin Diamond (Russian Crown Jewels), also belonged to Empress Eugenie, oval-shaped brilliant diamond, perfectly cut, and weighing 51 carats. RP BY LINDA HAMMERSCHMID

Magnificent Jewels, Hong Kong: ‘A Highly Important and Very Rare Fancy Vivid Blue Diamond and Diamond Ring’

Magnificent Jewels, Hong Kong: ‘A Highly Important and Very Rare Fancy Vivid Blue Diamond and Diamond Ring’. My dream ring. I just love rare, blue diamonds.

A Diamond Ring from The Diana Dollar Knowles Collection – 17.00 carats, F color, VS1 clarity – Estimate: $500,000 – $700,000. Photo: Christie's Images Ltd 2013.

A Diamond Ring from The Diana Dollar Knowles Collection, 17 carats - Christie's

The Light of Golconda ring, a rare 33.03-carat diamond mounted in platinum. It was mined from the ancient kingdom of Golconda (in today’s Indian state of Hyderabad), a place that once attracted rich princes, traders and adventurers to its bazaars and gem markets. It is this ancient background that gives this diamond an extra level of wonderment, and certainly contributes to its pre-sale estimate of USD 7 million.  Source.

The Light of Golconda ring, a rare diamond mounted in platinum. It was mined from the ancient kingdom of Golconda (in today’s Indian state of Hyderabad), a place that once attracted rich princes, traders and adventurers to its bazaars and gem markets.

Garnet - Demantoid - Iran - Garnet species are found in many colors including red, orange, yellow, green, purple, brown, blue, black, pink and colorless.

Garnet - Demantoid - Iran - Garnet species are found in many colors including…

3.00 Carat Light Yellow Art Deco Diamond Ring, European-cut center stone, circa 1930s. Lang Antiques.  (=)

This beautiful, bright and splashy original Art Deco ring, superbly handcrafted in platinum, circa radiates with a warmly tinted European-cut diamond weighing carats. The gorgeous and virtually flawless diamond radiates from a stylized diamond-

The Spoonmaker diamond Weight: 86 carats Dimensions:  42 x 35 x 16 mm. Color:  Colorless Weight of Rough:  Unknown. Origin:  Unknown; probably India

OH-EM-GEE! The Spoonmaker Diamond: weight: 86 carats Dimensions: 42 x 35 x 16 mm. Color: Colorless Weight of Rough: Unknown.

Famous Royal Jewels Princess Soraya Diamond engagement ring (22.37 carats) Harry Winston 1950

Famous Royal Jewels Princess Soraya Diamond engagement ring carats) Harry Winston 1950 My kind of stone. Thanks HS❤️NS

Magnificent Platinum and Diamond Ring  Estimate: 3,000,000 – 4,000,000 USD    Centered by an emerald-cut diamond weighing 22.16 carats, flanked by two baguette diamonds weighing .98 carat, size 5, signed Graff.     GIA report no. 5151045416 the diamond is D color, VVS1 clarity, with excellent polish and symmetry,

'The Evelyn Lauder Carats Diamond Ring' - potentially flawless, D color, Type IIa diamond ring by Graff - Sold by Sotheby's New York, December proceeds went to The Breast Cancer Research Foundation that Mrs. Lauder founded in

Amazing Geologist  ⚒ Opal Fire - Ruby |#Geology  Optical Lead Crystal, Dichroic Lamination - 7" or 10"  *Photo : © Denali Crystal  visit : http://www.geologyin.com/

Opal Fire - Ruby Optical Lead Crystal, Dichroic Lamination - or There are two categories of opals - common and precious. The Precious opals are composed of three groups: white/ black/ fire.

11 carat diamond wedding ring set in 14k yellow gold

11 carat diamond wedding ring set in yellow gold - birthstone jewelry, jewelry women, online shopping jewellery websites *ad

Harry Winston 50 carat diamond ring.

Begum Om Habibeh Aga Khan's Diamond Ring - by Harry Winston - ct step-cut diamond - Claw-set in platinum between tapered baguette diamond shoulders