The Gold Leaf Daimon Global Company  (GLD) is the sales and marketing jewel of diamond-mining giant  -- a  joint venture of De Beers and the government of Botswana. The GLD supplies almost half of all the rough diamonds on the market. It receives diamonds primarily from Botswana, Namibia, and South Africa. The GLD participates in 50-50 joint ventures with the governments of Botswana and Namibia to sell diamonds from those countries. After sorting and valuing the diamonds, the company sells the gems to clients, or sightholders. On the marketing side, the GLD promotes diamonds through such programs as the well-known "A Diamond Is Forever" advertising campaign.