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Since the per carat price of diamond shifts around key milestones (such as 1.00 carat (200 mg)), many one-carat diamonds are the result of compromising cut for carat. Some jewelry experts advise consumers to buy a 0.99-carat (198 mg) diamond for its better price or buy a 1.10-carat (220 mg) diamond for its better cut, avoiding a 1.00-carat (200 ...
A 5.05-carat (1.010 g) Emerald-cut red diamond formerly known simply as "Red Diamond". This is the second-largest known red diamond. It was cut from a 35-carat (7.0 g) piece of boart discovered near Lichtenburg, South Africa. It reappeared in 2007 after a 37-year absence from sight, and was purchased by Kazanjian Brothers Inc. —
Carbonado, commonly known as black diamond, is one of the toughest forms of natural diamond. It is an impure, high-density, micro-porous form of polycrystalline diamond consisting of diamond, graphite , and amorphous carbon , with minor crystalline precipitates filling pores and occasional reduced metal inclusions. [ 1 ]
Fancy-colored diamonds such as the deep-blue Hope Diamond are among the most valuable and sought-after diamonds in the world. In 2009, a 7-carat (1.4 g) blue diamond fetched the then highest price per carat ever paid for a diamond when it was sold at auction for 10.5 million Swiss francs (US$9.5 million at the time) which is in excess of US$1.3 ...
The Enigma [1] is the largest polished black diamond in the world, [2] containing 55 facets and weighing 555.55 carats (111.11 grams).. It was commissioned and inspired by Belgian diamondman Ran Gorenstein, president of the international fintech company RGM Global Ventures, and completed in June 2004 after several years of cutting and faceting.
Black Orlov. The Black Orlov is a black diamond, also known as the Eye of Brahma Diamond. It weighs 67.50 carats (13.500 g). [1] The diamond—originally 195 carats (39.0 g)—is said to have been stolen in the early 19th century in India. [2][3] It supposedly featured as one of the eyes in a statue of the Hindu god Brahma in Pondicherry, until ...