Art Nouveau 12K Boulder Opal Ring Square The surface measures about 3/8"

The surface measures about 3/8" wide and is 1/4" thick at its deepest

bloodstone

Measurements: The spinner design measures approximately 1 1/2" wide

A funky and colorful piece

The 3-dimensional carving displays incredible facial features

Art Nouveau 12K Boulder Opal Ring Square The surface measures about 3/8"Boulder opals are the rarest of all natural opal varieties, comprising only 2% of Australia's total opal population. In terms of value, they are considered second only to the popular Black Opal. The name "Boulder Opal" originates from their natural formation, where they are embedded into large ironstone boulders, often retaining part of their ironstone matrix when mined. Their unique appearance includes vibrant flashes of color enhanced by the