According to national regulations, all gold jewelry must be stamped with corresponding steel marks before it can be sold on the counter. The ID card of steel stamp is equivalent to gold jewelry. It should consist of two parts: material and purity. Some will add brand name or factory name. Generally, it is carved in places that do not affect the appearance, such as bracelets and rings are carved on the inner wall, necklaces are carved on the M-buckles, and earrings are carved on the stick. Don’t buy gold jewelry without steel stamps or wrong steel stamps, otherwise you will suffer a big loss! Today, the editor will take you to learn about the common precious metal jewelry stamps.
1. Gold
The chemical symbol of gold is Au, the abbreviation of gold in English is G, and these two letters represent gold. Gold steel stamps of different purities are different.
purity 99.99%, common steel stamps include Au999.9, full gold 999.9, ten thousand gold 99.9, ten thousand gold 99.9%, common steel stamps include Au999, G999, full gold 999, thousand gold 99.00%, common steel stamps include Au990, G990, full gold 91.60%, common steel stamps include Au916, 916, 22K
has a purity of 75.00%, and the common steel stamps include Au750, 750, 18K, G18K, G750
has a purity of 58.50%, and the common steel stamps include Au585, 585, 14K
From May 4, 2016, the only mandatory national standard for the Chinese precious metal jewelry industry, "Regulations and Naming Methods for the Purity of Jewelry Precious Metals" stipulates that precious metal jewelry will be uniformly nominalized by gold, platinum, palladium, and . That is to say, when buying gold jewelry, you just need to determine the standard of sufficient gold. There is no need to pursue the "nine" more, the better. If the merchant fools you into buying four nines or five nines, it is just to make more money from you, just ignore him and go out and turn right. When recycling or replacing gold jewelry, no matter how many nines are, the price is calculated according to the standard of sufficient gold, and refer to international gold price .
The jewelry we wear on a daily basis is mostly full gold and 18K gold . 22K gold jewelry is not mainstream and is relatively rare. 14K gold mostly comes from abroad.
Pay special attention to : The following types of steel stamps are not gold. The steel stamps are engraved with GP or KP, which represents gold plating, GF and KF, which represents package of gold or forged gold, without letters, only has the number 999, which is a bad merchant playing the edge to confuse consumers. You should know that the purity of copper can also reach 999. Sand gold and gold look very similar, but in fact it is made of copper.
2. Silver
The chemical symbol of silver is Ag, the abbreviation of the English letter Silver is S, and these two letters represent silver.
purity 99.9%, common steel stamps include S999.9, Ag999.9, full silver 999.9
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3. Platinum
The chemical symbol of platinum is Pt.
purity is 99.90%, common steel stamps are Pt999
purity is 99.00%, common steel stamps are Pt990
purity is 95.00%, common steel stamps are Pt950
platinum is known as the king of precious metals and will never change color. Because platinum has a high melting point and is difficult to process, jewelry made from platinum is sold at a high price.
4. palladium
The chemical symbol of palladium is Pd.
purity 99.90%, common steel stamps are Pd999
purity 99.00%, common steel stamps are Pd990
purity 95.00%, common steel stamps are Pd950
Palladium As a rare precious metal, it was very cheap ten years ago, and its price is only half that of gold.But it is more expensive than gold now, because palladium has another function, which is to redox the harmful gases after gasoline burning into carbon dioxide and water. Therefore, as the world strengthens control over automobile exhaust emissions, palladium is in short supply. It has been rising all the way since 2016, surpassing gold. If you have palladium jewelry on your hands, don't sell it as platinum. The palladium stamp is Pd, and the platinum stamp is Pt.
Regarding the steel seals of common precious metal jewelry, the editor has summarized them into a picture for everyone, and everyone will take them away!
-END-At this point, today's sharing is over!
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