Shop Custom Jewelry › Tourmaline Stacking Ring Image 1 of 1 Tourmaline Stacking Ring $550.00 October Birthstone - TourmalineDetailsTourmaline:0.10 carat Ring Size: 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 Purchase Added! October Birthstone - TourmalineDetailsTourmaline:0.10 carat Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Alexandrite Stacking Ring $640.00 Emerald Stacking Ring $550.00 Sapphire Stacking Ring $550.00 Emerald Necklace $740.00 Custom Round Cluster Ring $1,650.00