1. When you do housework, don't let the diamond you wear be stained with oil or bleach, oil will affect the luster of the diamond ornaments; Bleaching water stains metals. 2. It is not advisable to wear diamond ornaments for heavy work. Although the diamond is hard and wear-resistant, it may be damaged if it is hit hard according to its grain direction. 3. Never put the diamond ornaments and other jewelry together in the drawer or jewelry box, because the diamond will scratch other jewelry when rubbing. At the same time, platinum jewelry should not be worn with gold jewelry. Because gold is soft, if it rubs against each other, it will not only damage gold ornaments, but also dye gold on platinum, turning yellow and difficult to remove.