An important 14k yellow gold pin/pendant with bezel mounted Lightning Ridge Australian black opal, calf's head tourmaline and a round brilliant diamond, signed on back, tests for 14k gold. The majority of the opal, as can be seen from the side, is the basic rock from which the opal grows, while the opal itself represent a thin section atop displaying vivid and intense play of color.

Measures 1.875 x 0.325 inches, weighs 7.4 grams.

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Very good condition throughout, no damage repair or heavy wear.