Ordinary rings are generally 0.6 to 1 g. According to official website, China Jewelry and Jade Jewelry Industry Association, plain rings are generally beautiful in the weight range of 0.6 g to 1 g, with high ornamental value and heavy texture. The larger the size of an ordinary ring, the more metal materials, and the greater the overall weight of the ring. Plain ring is a ring made of precious metal, which is in the shape of a ring, without special treatment, carving patterns or setting gems. Its appearance is smooth, slender and elegant, and it has a unique beauty of simplicity. It is simple, low-key and fashionable to wear on your finger. Because the plain ring is smooth and slender, it can be worn alone or in combination, and it is not easy to be scratched and damaged.