October birthstone jewelry celebrates two of the most colorful gemstones in fine jewelry: opal and tourmaline. Opal is known for its signature play of color, revealing flashes of light and movement from every angle. Tourmaline, by contrast, is prized for its remarkable range of color, from soft pinks to deep greens, with each stone offering its own distinct character. Explore October birthstone rings, necklaces, earrings, and pendants crafted in 14k gold, each selected for its individuality and lasting beauty.