Opal Immaculate Top Grade Quality 100% Natural Boulder Opal Fancy Shape Cabochon Loose Gemstone For - Height: 22 mm - Width: 17 mm- 3.7 g - (1)

Boulder opal is a unique type of opal that forms naturally within ironstone boulders, primarily found in Queensland, Australia. Known for its vivid play-of-color flashing through the brown ironstone matrix, boulder opal cabochons are highly prized for jewelry due to their durability and stunning aesthetics. This particular loose gemstone is described as immaculate and top-grade, indicating high clarity and vibrant coloration without significant flaws. Measuring roughly 22 mm in height and 17 mm in width, it’s a versatile size suitable for rings, pendants, or earrings. The fancy shape enhances its appeal and helps showcase opal's characteristic iridescent flashes ranging across multiple hues. Due to their natural formation, each boulder opal cabochon is unique, offering a one-of-a-kind piece for gem collectors and jewelry makers seeking natural, eye-catching stones.