Tanzanite Solitaire Ring in Rhodium Overlay Sterling Silver, 8.525 Ct. The floral artwork on the Tanzanite Solitaire is itself impressionable and unbelievably captivating. The fine carving makes the gemstone one-of-a-kind and a rare collector’s item. The ring set in Sterling Silver has the fine finish of Rhodium Overlay. The accuracy of the displayed colours depends on the hardware and software. Colours may differ slightly from the original product. Gemstones are commonly treated to enhance color or clarity. This has not been researched for this specific item.