Heart Shape Lab Created Gemstone and Diamond Pendant Necklace in Sterling Silver 6mm Heart Shape Lab Created ( Synthetic) Opal 1 genuine diamond pendant measures 17mm (just under 3/4in) 18in sterling silver chain. Sterling Silver is Rhodium Finished You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! 6mm Heart Shape Lab Created ( Synthetic) Opal 1 genuine diamond pendant measures 17mm (just under 3/4in) 18in sterling silver chain. Sterling Silver is Rhodium Finished Heart Shape Created ( Synthetic) Ruby 1 small genuine diamond pendant measures (just over 1/2in) 18in sterling silver chain All of our diamond and gemstones suppliers state that to the best of their knowledge all stones supplied are conflict free.