2.37 Carat Black Diamond Jinx RingSizing Guide 2. 37ct TDW Jinx Hexagon Halo Black and Brown Diamond Ring in 14k Rose Gold (Size 6 Only) A large black diamond stands tall as it beckons admirers with luxurious high fashion materials and unique design. The posh style brings an irresistible charm without being gaudy. Medium brown champagne diamonds encircle the center along a hexagon shape and continues down the minor split shank and past halfway down the ring. A 14 karat rose gold