Ethiopian, Welo Opal. Multi Tourmaline. Ring. Size. (6). Vermei Yellow Gold over Sterling Silver.Ethiopian, Welo Opal, Cushion. (10×8) mm. (2.11) ctw. Bezel Set. Tourmaline Rounds. Multicolores.(2.25) mm. (1.65) ctw.(3.75) ctw. Tourmaline Prong Set. Beautiful Impressive Display of Color's. Premium, Gorgeous Opal. Majestic, Magical Shifting Kaleidoscope, Spectrum. Encompassing by Halo of Multicolored Tourmaline. Bellissima, Bonito. Must have in your Jewelry Collection. New. Shipping box included.