▪Material: 925 sterling silver (Plated rose gold / black K gold / white K gold / 18K gold) Please inform us of the ring size and color after placing an order ▪Dimension rose size 12 mm. ▪Jewelry are handmade, and so slight variations in size are to be expected. But each one is unique. ▪Jewelry are made to order the production starts after payment. It takes an average of 5 working days, excluding regular holidays and logistics delivery time. If any design is in stock, we will ship for you as fast as possible. ▪Please avoid wearing silver jewelry when taking a shower/bath, swimming, or using a spa or hot spring. Chlorine and another substance in water will effect and vanish off the plated gold rapidly and restoration will not be possible. ▪Silver can oxidized and effect will varied by Air, Temperature and the skin type of user. Our perspiration are not the same. If you normally wear silver and turn black mean your perspiration has more sodium. Then we recommend you to order our jewelry in black K gold plated.