Black opal and diamond brooch in platinum:
Black opals and diamonds in platinum c. 1915:
25.73 carats of black opal with diamonds set in gold:
230 carats of opal, 10 carats of diamond in platinum. Seaman Schepps suite:
36.50 carat Contra Luz opal with diamonds and sapphires by Paul Flato:
32 carat opal peacock brooch with diamonds, rubies, emeralds, and sapphires in gold:
11.50 carat (black?) opal with emeralds and sapphires in gold and platinum:
11.59 carat fire opal with diamonds in platinum (from Mexico?):
15 carats of fire opal with 2 carats of diamonds in pendant: