Opal, Diamond, Sapphire, Silver Gilt Necklace. Featuring eleven oval and eight round opal cabochons, accented by ten round-cut sapphires weighing a total of approximately 1.00 cttw., further enhanced by one hundred and forty-five diamonds set in a silver gilt butterfly motif mounting, suspended from a 16 inch silver chain. {Gross Weight: 12.7 dwts}