Australian 4.38ct Boulder Opal, Diamond, 18K Gold & Platinum Necklace

This stunning 5.85ct Australian Boulder Opal and Diamond Pendant will captivate you with its rainbow play of color and vibrant, bright colors. Set in lustrous 18K Gold, this pendant features a clip-on bail with a safety clasp so it can be added onto any chains or small pearl necklaces...

Australian Boulder Opal Diamond Pendant Necklace 14K Yellow Gold. Free Domestic USPS First Class Shipping! Free One Year Limited Warranty! Free Gift Bag or Box with every order! Op...

This stunning pendant features a majestic black opal set in a freeform diamond-shaped bezel, elegantly framed by intricate gold swirls. The combination of marquise and round diamonds...

This refined pendant is crafted in solid 18K yellow gold and showcases a vivid Australian Boulder Opal distinguished by its natural play of color. Within the compact yet expressive s...

A Pendant bezel set with Australian Boulder Opal from Queensland measuring impressive 3.00ct (8mm x 22mm), mounted in 18K white gold setting, to the diamond set bail adorned with ...

Vibrant and colorful, this exquisite fish shaped pendant is crafted in fine 14K yellow gold. It showcases a multicolored boulder opal at its center, overlaid with a diamond studded y...

Australian Boulder Opal Pendant Necklace 14K Yellow Gold. Free Domestic USPS First Class Shipping! Free Gift Bag or Box with every order! Opal—the queen of gemstones, is one of the...

Double-sided necklace with natural Australian Boulder Opal in 18K yellow gold gemstone origin - Australia gem size is 15 x 25 mm weight of the Opal - 17.75 carat pendant length - 38 ...

This refined pendant features a natural Australian Boulder Opal set in solid 18K gold, highlighting the organic beauty and depth of the gemstone. The opal displays a vivid play of co...

A striking 18ct gold vintage pendant featuring a natural Australian solid boulder opal showcasing electric flashes of violent, blue, and green with touches of bright red, arranged in...