Shop › incredibly unique Watermelon Tourmaline ring set in Sterling silver, size 9 Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 incredibly unique Watermelon Tourmaline ring set in Sterling silver, size 9 $160.00 Incredibly unique watermelon tourmaline set in sterling silver size 9. Handcrafted and hand cut. Add To Cart Added! Incredibly unique watermelon tourmaline set in sterling silver size 9. Handcrafted and hand cut.