Diamond rings with more than 20 points will have an appraisal certificate (diamonds of any size can be sent), which has the grades of diamond weight, clarity, cut and chromaticity. Generally, a GIA certificate from the United States will be issued if the score is above 30. Each diamond has a unique laser code, which can be found on the website.
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Key points of diamond ring maintenance:
1. Don't bump the maintenance diamond ring. Diamonds are the hardest thing in the world, but they are actually afraid of being beaten. Because of its special molecular structure, it can carve traces on any gem, but it can't stand collision. Especially for "pointed inlaid" diamonds, the diamond waist is very fragile.
2. The maintenance of diamond ring needs regular annual inspection. Diamonds are often lost due to loose inlays. It is suggested that the diamond ornaments should be inspected every year, and the inserts should be reinforced and polished again.
3, the maintenance of the diamond ring needs professional cleaning: diamonds are lipophilic gems, easy to be contaminated by oil, so when applying hand cream, you should take off the diamond ornaments. You can't wear it while swimming. Chloride bleach in water will corrode diamonds. It is recommended to choose professional jewelry cleaning agents and instruments for cleaning.
4. The maintenance of diamond rings should be classified and stored: different gems should be classified and stored to prevent hard diamonds from scratching other gems. To prevent the jewelry from darkening, put a piece of chalk to absorb water.
Reference source Baidu Encyclopedia-Wedding Diamond Ring: