When you shop for opals you'll find significant differences in opal appearances and qualities. Many opals for sale are solid gems, but some are composites, called doublets or triplets. A composite opal is made of a thin slice of real opal that is mounted to the top of other, cheaper materials. There's nothing wrong with buying doublet and triplet opals as long as the seller discloses that they are composites and you pay an appropriate price for them.
14k Yellow Gold Genuine Opal and Diamond Ring
Mondera
The central stone in this diamond and opal ring is a 10 x 5 mm marquise cabochon opal that's graded "A" in quality. Six round, brilliant cut prong set diamonds surround the opal. Set in 14K polished yellow gold.
Heart Shape Opal with Diamond Accents
Zales
This pretty heart-shaped opal is set in 10K white gold. It's held in place with three prongs and surrounded by small round diamonds in four-prong settings.
