"Gypsy" dome ring with Ethiopian opal in 14K yellow gold, $1,830, sigwardjewelry.com. A special setting and multiple cuts make up this one-of-a-kind opal, pink spinel, and white diamond ring which ...

Champagne Opal Crystal, Red Crystal, Green Peridot Crystal, and Blue Violet Crystal. The Cailin Gold Pendant Necklace features a delicate 16-inch chain made of 14k yellow gold over brass ...