Australian Boulder Opal Brooch Set in 18 Karat Gold

A froggy delight, this brooch is just adorable. Modelled from the Australian green tree frog, made from solid 18K gold with gorgeous blue-green boulder opal back and green emeralds f...

Seductive and enchanting, "Forest Nymph" can be worn as a dazzling pendant or a dramatic brooch. Flowing gold and diamond serpentines clasp a sizeable 47....

Intricate and opulent, the ‘Florella’ opal doublet brooch (4.29ct) is skillfully set in a beautifully interwoven 18K Yellow Gold lattice. In this p...

This exquisite vintage opal brooch in 18 Karat yellow gold enchants with elegance. At the center of the square design is a small blue opal flower...

Designed as an abstracted fish with deeply grooved top fins and engraved bottom fins Featuring an organically shaped boulder opal cabochon bezel set as the body Measuring 22.0 x 56.0 mm - displaying blue, green, and violet play-of-color With black, brown, beige, and tan colored matrix Reverse features 4.0 mm round pearl spacers White in body color with subtle iridescence With matte gold finish throughout Completed by hinged pinstem with locking closure Stamped for 18 karat gold Signed for Rob Green...

Australian opal yellow gold pendant brooch Opal measures approximately 13 x 19.5 mm, 18 karat yellow gold; marked 18k Size: width 1.5 inc...