What is the inner ring of Fan Qihuan?

The inner ring of a ring is usually marked with letters and numbers, with letters representing the material of the ring and numbers representing the purity of the ring. Take a platinum ring for example. The inner ring of a platinum ring is usually marked with PT900 or PT950, which means that the ring is made of platinum with platinum content ≥ 900% or platinum content ≥ 950%. If it is a diamond ring, in addition to the purity of the diamond ring, there will be numbers indicating the weight of the diamond. For example, D050 means that the ring is set with 50 cents of diamonds.

The national quality requirements indicate the contents on the inner wall of the ring: metal purity (such as 18K, Pt950, etc.). ), gram weight (in the case of diamonds or precious stones), factory logo (logo or code), ring number, etc.

1, gold ring

The inner wall of a gold ring is usually engraved with the symbol of pure gold 999, indicating that the gold content of the ring is 99.9%.

2, platinum ring

The symbol of platinum is PT. Generally, the inner wall of platinum ring is marked with PT900, PT950, PT990, etc. Numbers 900, 950 and 990 represent platinum content, which respectively represent platinum content ≥900‰, platinum content ≥950‰ and platinum content ≥990‰.

3, K gold ring

K-gold is an alloy made of gold and other metals. Due to the different types and proportions of other metals, K gold appears in many colors, such as white, yellow, red and rose. The inner wall of the common 18K gold ring will be marked with "G750 or AU750", indicating that the gold content is 75%.

4. Silver ring

The common signs on the inner wall of silver ring are S925 and Ag925, where S is the abbreviation of silver, and 925 represents a silver ring with 92.5% silver content.

5. Diamond ring

Due to different materials, the English letters and numbers on the inner wall of the diamond ring are more diverse. There are usually: G 18K, AU750, G750, PT900, PT950, PT990, PD900, PD950 and so on. Where G 18K, AU750 and G750 represent 18K gold, and PT900, PT950 and PT990 represent platinum for the diamond ring; And PD900 and PD950 represent the palladium of diamond ring, and PD is also the cheapest of the three kinds of gold. Some diamond rings are marked with D on the inner wall, followed by some numbers. For example, D050, where D stands for diamond and 050 stands for 50 cents (0.5 carat) diamond.

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