An important 45.55ct Lightning Ridge black opal and diamond pendant in 18ct gold, featuring a large cabochon Lightning Ridge black opal in a freeform, triangular drop shape measuring 29. 5 x 28. 4 mm and displaying a bright blue/green flowing pattern, claw set in an 18ct gold leaf motif pendant pave set with 80 round brilliant cut diamonds graded by the GSL as G/H colour and VVS/VS clarity and weighing 3.