Tagua (tah-gwah) is a plant alternative to ivory. A large, hard nut that can be cut, shaped and sculpted into. Get these beautiful Tagua half moon face in a sterling silver earrings. They come with an amethyst cab designed by the ear wire and an opal cab. Designed by Sabine Koehring and made in Indonesia. About 5g in weight and 1.75cm wide each.