Stone Story
If you're considering a fine opal gift, black opal from Lightning Ridge is the category's highest tier. Its dark body tone, ranging from dark gray to jet black, creates the contrast that makes play-of-color appear at maximum brilliance and intensity, which is a visual effect lighter opals can't replicate. Fine examples are among the most valuable gemstones per carat in the world, which reflects both rarity and a visual standard nothing else in the October birthstone category matches.