Rock Crystal Quartz, Tourmaline, Diamond, 18k Gold Brooch. Featuring one quartz crystal cluster, measuring approximately 40 x 35 mm, centering one oval-cut tourmaline weighing approximately 0.85 ct., accented by twenty-six single-cut diamonds weighing a total of approximately 0.65 cttw. set in an 18k gold mounting. {Gross Weight: 7.2 dwts}