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BDG. The Blackmar–Diemer Gambit (or BDG) is a chess opening characterized by the moves: 1. d4 d5. 2. e4 dxe4. 3. Nc3. where White intends to follow up with f3, usually on the fourth move. White obtains a tempo and a half-open f-file in return for a pawn, and as with most gambits, White aims to achieve rapid development and active posting of ...
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Korloff Noir. The Korloff Noir is one of the world's largest known black diamonds. It is an 88-carat diamond, with 57 edges. Before it was cut and polished, it had 421 carats. It is named for the Korloff -Sapojnikoff family, members of the Russian nobility, who once owned it. In 1978, Daniel Paillasseur, a French jeweller, purchased it. [1]
Black Diamond was founded on December 1, 1989, when the assets of Chouinard Equipment Ltd. were purchased by a group of former company employees led by (now former CEO) Peter Metcalf, and a few outside investors. Metcalf moved the company and its 45 employees from Ventura, California to the Salt Lake City, Utah area in September 1991 to be ...
Original owner. De Grisogono. The Spirit of de Grisogono is the world's largest cut black diamond and the world's fifth largest diamond overall. Starting at an uncut weight of 587 carats (117.4 g), it was taken from its origin in western Central African Republic and cut by Swiss jeweler De Grisogono. The resulting mogul-cut diamond weighs 312. ...
Black Diamond apples (Malus Domestica) are a rare variety of Chinese Red Delicious, also called Huaniu, that are grown in a mountainous region of Tibet. Their skin is dark purple, like a plum ...
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 ]