Extraordinary Boulder Opal - Lightning Ridge Mines - Australian Opal Extra Quality - Certified Italian Silver Jewel - Height: 60 mm - Width: 21 mm- 21 g - (1)

Boulder opal is a unique and extraordinary form of opal found primarily in Queensland, Australia, notably from areas like Lightning Ridge, which is famed for its black opal as well. This specimen features Australian boulder opal set in a certified Italian silver jewel setting, emphasizing both aesthetic and precious-metal craftsmanship. Boulder opal forms within ironstone boulders and displays vibrant play-of-color, ranging from flashing blues and greens to fiery reds and oranges, caused by the diffraction of light through microscopic silica spheres. The 60 mm height and 21 mm width and 21 g weight describe a substantial piece suitable for distinctive jewelry. Boulder opals are treasured for their durability and captivating colors that contrast beautifully with their ironstone matrix. Such gemstones combine natural beauty with artistic expression, making them prized in fine jewelry and collectors' circles globally.