Carat (mass) g or possibly up to 5 g less. Therefore, the metric equivalent of 1 "siliqua" was approximately 189 mg. The Greeks had a similar unit of the same value. Gold fineness in carats comes from carats and grains of gold in a solidus of coin. The conversion rates 1 solidus = 24 carats, 1 carat = 4 grains still stand. Woolhouse's "Measures, Weights and Moneys of all Nations" gives gold fineness in carats of 4 grains, and silver in pounds of 12 troy ounces of 20 pennyweight each. Carat (mass) The carat (ct) (not to be confused with the karat,
Carat Cheung Carat Cheung Carat Cheung (; born 7 December 1987) is a Canadian-Chinese actress, model and former beauty pageant queen currently based in Hong Kong and currently under Television Broadcasts Limited (TVB) management. She is the winner of the 2012 Miss Hong Kong Pageant. Carat Cheung hails from Vancouver, British Columbia. She attended Killarney Secondary School and graduated from University of British Columbia majoring in Economics Business Studies. Cheung is also the niece of TVB television drama producer Alfred Cheung Kin-ting. Prior to returning to Hong Kong, Chueng worked as a presenter for Fairchild TV, a Chinese television channel in Canada.