The ring size standard table used in different countries and regions is different, and the mainland version and Hong Kong version are currently used more in China.
How big is the ring 21
2, in the mainland version, the ring No. 21 ring circumference is 61mm, the diameter is 19.4mm.
3. Ring size 21 in other countries is as follows
1. Rinse with detergent
Pour a little cleaner into the bowl and warm water to stir up the foam, then put the diamond ring into the bowl, wipe with a soft brush, after brushing the diamond ring out into a metal mesh or tea strainer, rinse with warm water, and then dry with a soft cloth.
3, cold water immersion method
In half a cup of household Armonian water, add the same amount of clean water, dip the diamond ring into the solution and stir gently, then blot the water with paper.
5. Use toothpaste
If the platinum ring is stained, it can be cleaned with toothpaste. Squeeze the toothpaste onto a clean cotton cloth, and then wipe the cotton cloth with the toothpaste side on the surface of the platinum ring back and forth, after wiping, rinse and dry.