These gorgeous dangle earrings are made with hand-cut 4mm amethyst cubes on a squared-off threader made of .940 Argentium sterling silver. Argentium is a silver alloy that is hypoallergenic with a pure white color and highly tarnish-resistant. Like all natural gemstones, color, tone and vibrancy can vary, making each pair unique. Every item from Bijou by SAM is small batch and handmade in Montana by a woman-owned business.