This gorgeous sterling silver amethyst and tanzanite ring is a must-add to your fine jewelry collection. This gorgeous sterling silver amethyst and tanzanite ring is a must-add to your fine jewelry collection. Watch the product video here. Width: 0.80″ Metal: sterling silver Plating: rhodium Finish: polished Packaging: boxedSTONE DETAILS Stone type: amethyst, tanzanite Total weight: 1/6 ct. Shape: square Setting: prong Gemstones may have been treated to enhance their appearance. Special care may be required. Please visit our Gemstone Treatment & Special Care Guide for more information. Please note, due to the high value of this item, a signature may be required upon delivery. Size: 7. Color: Purple. Gender: female. Age Group: adult.