18k white gold green tourmaline and diamond brooch. The free form style features 1 emerald cut, green tourmaline, that measures 11x17mm. Based on the measurements the tourmaline weighs approximately 11.00 carats total. Small pave set diamonds are set within the free form design, they weigh approximately 75/100 carat total. The brooch measures ¾ x 2 ¼ inches, and weighs 6.6 dwts.