Natural Bi Color Tourmaline 3.77 Ct. Octagon Shape 13.2 x 5.5 Mm. Gemstone Unheated From NigeriaTreasure of Gems & Jewelry4.4(219)US$1Mar 08, 2026
Natural Bi Color Tourmaline 5.50 Ct. Octagon Shape 11.4 x 8.3 Mm. Gemstone Unheated From NigeriaTreasure of Gems & Jewelry4.4(219)US$1Mar 01, 2026