An 18ct gold opal and diamond pendant necklace, featuring a 15.5 x 8.6 mm triangular form solid black opal of approx. 5.20ct to surround channel set with 22 round brilliant cut diamonds totalling approx. 0.20ct, on a fine scroll link chain, pendant 27 x 14.5 mm, length 41 cm, wt. 6.22g.