Carat (mass) Despite its being a non-metric unit, a number of metric countries have used this unit for its limited range of application. The Board of Trade carat was divisible into four "diamond grains", but measurements were typically made in multiples of carat. There were also two varieties of "refiners' carats" once used in the United Kingdom — the pound carat and the ounce carat. The pound troy was divisible into 24 "pound carats" of 240 grains troy each; the pound carat was divisible into four "pound grains" of 60 grains troy each; and the pound grain was divisible into four "pound
Gold standard grams of pure (24-carat) gold. Mahathir claimed it would be a stable unit of account and a political symbol of unity between Islamic nations. This would purportedly reduce dependence on the US dollar and establish a non-debt-backed currency in accord with Sharia law that prohibited the charging of interest. the global monetary system continued to rely on the US dollar as the main reserve currency. Former U.S. Federal Reserve Chairman, Alan Greenspan acknowledged he was one of "a small minority" within the central bank that had some positive view on the gold standard. In a 1966 essay he contributed to