Tanzanite, Diamond, 18k Yellow Gold, Sterling Silver Pendant Necklace. Featuring one pear shaped tanzanite cabochon weighing approximately 30.35 cts., accented by round-cut diamonds weighing a total of approximately 1.65 cttw., set in an 18k yellow gold mounting measuring approximately 42 x 24 mm, suspended from a diamond, blackened sterling silver chain, forming a 37 inch necklace. {Gross Weight: 18.4 dwts}