View An opal and diamond ring set with three cabochon opals and four brilliant-cut diamonds by Jørgen Larsen on artnet. Browse upcoming and past auction lots by Jørgen Larsen.

View An opal, pearl and diamond brooch in the shape of flower with a face encircled by leaves, set with cabochon solid opals, a baroque seed pearl and brilliant-cut diamonds, mounted in 20k gold. L.

The art of gem cutting, including cabochons, faceting, spheres, tumbling, and special techniques, by H.C. Dake Smithsonian Libraries and Archives ...

NEWPORT BEACH, California – Lugano Diamonds reveals its spectacular Emerald and Opal Ring and Earrings, both featuring a deep green hue and a lustrous opalescence that is the perfect complement to any ...