Lightning Ridge Black Opal // 37.45 Carats

The rarest species of opal in the world, the black opal is sourced only in Lightning Ridge and several other Australian locations. Specimens from Lightning Ridge in particular are famous for their vivid natural hues and patterns and incredible opalescence or play of colors on a dark-toned body. Formed in underground cavities in sedimentary opal-bearing claystone, this substantially sized specimen has been expertly hand-polished to enhance the prized natural ornamentation and bring it to a brilliant luster.

Dimensions: 30mmL x 5mmW x 35mmH, Weight: 37.45 ct.