ALL COLLECTIONS › Rubellite Tourmaline Slab Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Rubellite Tourmaline Slab $4,600.00 Sold. Please contact us about future availability. Rubellite tourmaline slab with textured rim & white diamond.Approx: 1 3/4"H 15/16" wide Size 7.5 Sold. Please contact us about future availability. Added! Rubellite tourmaline slab with textured rim & white diamond.Approx: 1 3/4"H 15/16" wide Size 7.5