1/20 Ctw Cushion Cut 10x10mm Blue Topaz & Round Cut Diamond Semi Precious Pendant With Chain in Sterling Silver A gorgeous Blue Topaz and diamond pendant draw your instant attention to this link chain. The pendant features a semi-precious 10x10mm cushion cut Blue Topaz in the center, surrounded by a wide border, which twists at the top to form a loop. Enhancing the border are 16 prongs set round cut diamonds. Also, a milgrain finish adds to the brilliant look of the pendant, which comes along with a 1.00mm Cable chain. Both chain and pendant are styled in sterling silver. Total diamond weight is 1/20 ctw.