Image 1 of 1 Amethyst Twig Branch Earrings $140.00 Tarnish-resistant Argentium Silver branches with a 6mm Amethyst, a 4mm Amethyst, and a 3mm cubic zirconia gem. Quantity: Add To Cart Added! Tarnish-resistant Argentium Silver branches with a 6mm Amethyst, a 4mm Amethyst, and a 3mm cubic zirconia gem.