China, Thailand, the United States, and other countries should completely block the purchase of gems from Burma that help finance military abuses there... The state-run Myanmar Gems Enterprise said it generated sales of nearly US$300 million in fiscal year 2006-2007... A few jewelry retailers, notably Tiffany & Co. and Leber Jewelers, have long refused to purchase gems of Burmese origin... Bulgari and Cartier [part of Richemont] also have voluntarily pledged to boycott Burmese gems. In October 2007 the Jewelers of America, an industry association, issued an unprecedented call on [US] Congress to fully ban Burmese gems... [also refers to Myanmar Oil and Gas Enterprise, Myanmar Timber Enterprise]