De Koch Diamonds

De Koch (non-capitalized: de Koch; also deKoch) is a fine jewelers appearing in Grand Theft Auto: San Andreas, Grand Theft Auto IV, Grand Theft Auto: Chinatown Wars, Grand Theft Auto V and Grand Theft Auto Online.

Grand Theft Auto: San Andreas
The brand is advertised on the radio but it is not physically found in San Andreas as a business, although there is an advertisement in the official manual of the game stating the business is located on Dix Road, Los Santos.

Grand Theft Auto IV and Chinatown Wars
In GTA IV, de Koch has several physical stores in Liberty City. Their logo remains identical to the GTA San Andreas rendition.

Grand Theft Auto V and Grand Theft Auto Online
In GTA V and GTA Online, the player can buy De Koch clothing accessories at Ponsonbys, but there are no dedicated De Koch stores in southern San Andreas. In GTA Online, organizations can store and sell looted De Koch jewelry. In addition, a De Koch clock can be found in many interiors, such as a traditional-style Hangar.

Influence
The company name, logo and their products appear to be a parody of De Beers.

Trivia

 * Their name is an obvious play on "the cock".
 * In Grand Theft Auto: San Andreas, a particular black pedestrian in San Fierro is quoted saying "divest from De Koch Diamonds", referencing real-life campaigns to due to South Africa's apartheid policies.

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