October Birthstone Jewelry

About

The October birthstone is opal — traditionally white or fire opal with the distinctive play-of-color iridescence — with tourmaline recognized as the modern alternate by the American Gem Society. Both stones share a single defining quality that makes October birthstones distinctive: they display color ranges and visual effects no other birthstone offers. Opal shifts color as light catches it from different angles. Tourmaline appears in more natural color varieties than any other gemstone — pink, green, watermelon, blue, black, bicolor. Aquamarise® has handcrafted October birthstone jewelry since 2016. Every stone is hand-selected for color play, saturation, and clarity. Wherever possible, we source recycled precious metals from certified refiners. Every order ships with our warranty , 14-day return window on non-customized pieces, and complimentary ring sizing. This collection covers October birthstone jewelry across both stones — rings, necklaces, earrings, and pendants in sterling silver, gold vermeil, and solid 14K gold. For dedicated opal options, see opal engagement rings and opal inlay men's wedding bands . For complete birthstone information across all months, see our birthstones by month guide . For the broader birthstone hub, see birthstone jewelry .