Flirty, feminine and completely flawless. Le Vian's stunning ring features round and pear-cut amethyst (7 ct. T.w.), pear-cut rhodolite (1 ct. T.w.) and sparkling white topaz accents in 14k rose gold. Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care. All gemstone carat weights (ct. T.w.), if mentioned, are approximate; variance may be .05 carat. Custom ring sizing is not available for this item. Ring sizer. Ring Sizer.