Estate Opal and Diamond Ring. 14k, white gold mounting features a vibrant 6 carat opal with flashes of green, blue, violet and red. The opal is bezel-set and surrounded with a high polished frame containing 0.75 carats of evenly spaced prong-set brilliant-cut diamonds.

Estate Opal and Diamond Ring. 14k, white gold mounting features a vibrant 6 carat opal with flashes of green, blue, violet and red. The opal is bezel-set and surrounded with a high polished frame containing 0.75 carats of evenly spaced prong-set brilliant-cut diamonds.

The Tiffany Opal Necklace, designed by L.C. Tiffany circa 1929. This pendant features a 30" 18kt gold chain, green demantoid garnets (Russia), and black opals (from Lightning Ridge, Australia). The black opals have a great blue-green play of color (a.k.a. opalescence).

The Tiffany Opal Necklace, designed by L.C. Tiffany circa 1929. This pendant features a 30" 18kt gold chain, green demantoid garnets (Russia), and black opals (from Lightning Ridge, Australia). The black opals have a great blue-green play of color (a.k.a. opalescence).

An Art Nouveau gold, opal, diamond, emerald and ruby ring, circa 1900, France.

An Art Nouveau gold, opal, diamond, emerald and ruby ring, circa 1900, France.

Wendy Yue 18K White Gold, Diamond and Opal Feather Ring

Wendy Yue 18K White Gold, Diamond and Opal Feather Ring

Black Opal Pendant...oh my goodness I love love love this!!!

Black Opal Pendant...oh my goodness I love love love this!!!

Antique platinum pin/pendant with European cut diamonds and opal. #opal #pendant #jewelry

Antique platinum pin/pendant with European cut diamonds and opal. #opal #pendant #jewelry

ALBION ART Antique Jewelry - Art Nouveau Rene Lalique, ca.1900.

ALBION ART Antique Jewelry - Art Nouveau Rene Lalique, ca.1900.

Neptune's Garden. Australian Boulder Opal, Amethysts, 18k. Elle Schroeder

Neptune's Garden. Australian Boulder Opal, Amethysts, 18k. Elle Schroeder

Ethiopian opal earrings

Ethiopian opal earrings

Mexican Water Opal Pendant. Paula Crevoshay

Mexican Water Opal Pendant. Paula Crevoshay

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