Shop › Abalone and Tanzanite 3-Stone Ring - Size 6 Image 1 of 3 Image 2 of 3 Image 3 of 3 Abalone and Tanzanite 3-Stone Ring - Size 6 $118.00 This stunning 3-stone ring is created with Sterling Silver, Abalone Pua Shell and two rose-cut Tanzanites. Size 6. Add To Cart Added! This stunning 3-stone ring is created with Sterling Silver, Abalone Pua Shell and two rose-cut Tanzanites. Size 6.