Modernist Diamond, Multi-Stone, Platinum, 18k Yellow Gold Pendant Necklace. Featuring one cushion-cut, faceted-top tanzanite measuring approximately 9.25 x 7.42 x 6.4 mm, accented by three full-cut diamonds weighing a total of approximately 0.50 cttw., further enhanced by one oval shaped opal cabochon measuring approximately 6.5 x 5.15 mm and three oval-cut pink, green and paraiba colored tourmalines weighing a total of approximately 2.20 cttw., set in an abstract, articulated platinum, 18k yellow gold pendant mounting with removable bars and measuring approximately 52 x 33 mm, suspended from a 14k yellow gold box link chain, forming an 18 inch necklace. {Gross Weight: 8.9 dwts} Note: Yellow diamond not tested for origin of color, back partially signed "Ehlers"