Lovely, elegant 1.50 cttw black diamond stud earrings in .925 sterling silver. The 2 sparkling princess square black diamonds are natural and heat treated. Total diamond carat weight is 1.50 cttw (1.50 cttw). The diamonds are set in 4 prong basket setting with push backs (butterfly friction backs). Gift box is included with purchase of these stud earrings.