Shop February's birthstone, Amethyst - we have Amethyst necklaces, earrings, bracelets, pendants and beads. Amethyst is a gorgeous purple gemstone, ranging from  pink to lavender to intense violet. Ancient Greeks and Romans believed that Amethyst would prevent drunkenness. Today it is a gemtone rumored to help overcome addiction, improve self-control, and to overcome grief and loss.