The stamp on the jewelry, how much do you know?
Almost every type of precious metal jewelry will be marked with a special mark before it is placed on the sales counter. We are familiar with PT for platinum and S925 for silver. There are also some strings with a number after the letter, or some other decorations in front of the letters. These are the identification of precious metal jewelry. They abbreviate the ingredients of the jewelry into a mark, and understand these marks, which makes it clear. The material of the jewelry will be more assured when choosing precious metal jewelry!
Gold jewelry
Full gold: Mark "Gold", "GOLD990" or "G990". It refers to gold ornaments with a gold content of not less than 990 in the ratio of a thousand.
Thousands of gold: Mark "Thousands of Gold", "GOLD999" or "G999". It refers to gold ornaments with a gold content of not less than 999 in a thousand ratio.
K gold: Mark "8K", "14K", "18K" or "24K". Refers to precious metal jewellery (1K = 4.1666%) with gold content from 8K to 24K, such as 18K gold, with a gold content of 75%.
Color gold: Color gold is actually a kind of K gold, which is matched with various other metals such as aluminum, silver, cadmium and palladium in gold, which makes the jewelry appear purple, pink, blue, green, gray and so on. Therefore, its imprint is also consistent with the K gold mark.
TIPS:
Many people think that 18K white gold is platinum. In fact, 18K white gold is only one kind of K gold, so it is very important to look at the imprint when buying jewelry.
Platinum jewelry
Foot Platinum: Mark the "foot platinum" or "PT990". It refers to gold ornaments with a platinum content of not less than 990 in a thousand ratio.
950 Platinum: Mark "Platinum 950" or "PT950". It refers to gold ornaments with a platinum content of not less than 950 in a thousand ratio.
900 Platinum: Mark "Platinum 900" or "PT900". It refers to gold ornaments with a platinum content of not less than 900 in a thousand ratio.
850 Platinum: Platinum 850 or "PT850" mark. It refers to gold ornaments with a platinum content of not less than 850 in a thousand ratio.
TIPS:
A precious metal similar to platinum jewelry is called palladium, which is easily confused with platinum. The metal mark of palladium is PD, which is different from platinum, and it is followed by a number indicating the metal content, such as PD950. But the two are not the same category, and the price difference is also very different. Pay special attention when buying.
Silver jewelry
Full silver: Mark the "foot silver" mark or mark it according to the actual content. Refers to the amount of silver in the jewelry is not less than 990.
925 Silver: Hit the "Silver 925" or "S925" mark. It refers to the silver content of jewelry in the jewelry is not less than 925, is a common silver jewelry.
TIPS:
Regarding the marking of silverware, the market is generally only full of silver and S925, which are also common. However, the Hermès brand has innovated this year in silver jewelry, developed an anti-oxidation silver material, named "925+", and applied for a patent, which deserves attention.
Other jewelry
Gold-plated: Gold-plated jewellery is marked "GP" or "KP". It is based on the principle of electrolysis to coat a very thin layer of gold on the surface of jewelry made of silver or copper.
Package gold: commonly used KF. The gold foil is wrapped on the surface of a metal material such as silver or copper.
Forging gold: It is marked as "GF" or "KGF". It is essentially subordinate to gold. It is forged under the high temperature and high pressure conditions on the surface of other metal jewelry blanks. Forging gold surface has strong hardness and high wear resistance, so it is not easy to lose gold texture.
Platinum-rhodium alloys: alloys labeled PtRh5, PtRhl0, PtRhl3, PtRh30 and PtRh40 are currently rare in jewelry.
TIPS:
Nowadays, gilded jewellery is becoming more and more popular. Generally speaking, we often say that “silver gilt gold†and “copper gilt gold†will also be stamped with gold or gold, so pay special attention when purchasing.
Optical Metal Frame,Metal Optical Frames,Round Metal Optical Frames,Square Metal Optical Frame
Wenzhou 101 optical Co. Ltd , https://www.101optical.com