People send me a gold ring. There are jy thousands of money engraved on it. Essence What does it mean? What kind of gold is this, is the purity 9999? thanks

Does your ring refer to the circle, is there any number in the back? If so, the number on the ring is the ring number of the ring, JY is the abbreviation of the manufacturer's name, the thousand -foot gold is the material of the ring, and the lion refers to the ring of the ring. It may also be a brand, the golden leaves (JY) Jin Yiyi. Or jy: boutique. Thousands of gold: More than 99.9%of gold
Gold gold: more than 99%gold
22K: 91.6%of gold (mostly Singapore. Thailand) primary color
18K: current standard (G750. 750) Gold 75%
14K: Gold 58.5%
9K: Gold 37.5%
Note: 1.22k.18k.14k.9k is a gold jewelry containing gold, all of which have recycling value .
2.22k.18k.14k.9k jewelry will turn black when the fire will become dark. Putting it in hydrochloric acid will restore the original color.
3.18kgp is copper gold plating, without gold.
4. Word printing. All the big manufacturers will hit the manufacturer's character print on the jewelry. Some are Chinese characters, some are Chinese pinyin abbreviations.
such: Chow Tai Fook (CTF). ...