Champagne Diamond Pendant w/Chain, Rose Vermeil, Black Rhodium, 925 Silver, ShopLC. The Argyle Mine in Australia has been closed and no more production of champagne diamonds have been currently mined. The Argyle mine is known for the terms "champagne' and 'cognac' diamonds, plus, the widely-used color scale for champagne diamonds. Before their arrival on the diamond scene, it was bright white or nothing. This pendant contains 33, 1.2mm, round, single cut diamonds for a total of 0.250cts, and 178, 1.6 x 0.7 x 0.5mm, taper baguette, for a total of 1.250cts. Total carat weight 1.50. Black Rhodium accents the round cut diamonds and Rose Gold accents the taper baguettes. There is dimension to the design adding to its unique style. New old stock. New item. Old pricing. Shop with confidence. Thank you for looking.