18ct white gold, diamond and opal pendant. stamped 18k. Set with a freeform cabochon crystal opal 52 mm x 22 mm x 6 mm. Colours include green, blue with some yellow and orange. Play of colour; very good. 30x round brilliant cut diamonds total diamond weight 0.30ct. 1@ round brilliant cut 0.06ct. 1@ carre cut diamond 0.16ct. 1@ tapered baguette 0.10ct. Approx colour G-H, clarity VS-SI1. With lockable clasps. Total weight 15 grams. Silver chain 5 grams in weight, 62 cm, length '