What does 350 mean on jewelry?

350 Irid. 60% pure platinum, 35% iridium. 75% Platinum 25% Copper. 75% pure platinum, 25% copper.
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What does 375 mean on jewellery?

'375' gold is just one of many different types of hallmarks. If a gold product bears the hallmark '375', then your gold has been tested and classed as 9 carat or 37.5 per cent pure. The remaining 62.5 per cent of the item is composed of different metals such as nickel, copper, or in some cases silver.
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What do numbers on jewelry mean?

So the various fine gold markings, or stamps, tell you the purity of each jewelry item. More karats (the number before the "K") or a higher number means higher gold content. 333 - 8K - Gold - 33.3% 375 - 9K Gold - 37.5% 416 or 417 - 10K Gold - 41.6% +
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What does 400 mean on jewelry?

STANDARD MINT GOLD BARS held by the U.S. Mint contain approximately 400 troy ounces of gold. The purity of gold is defined either in karats or fineness. A karat is 1/24 part of pure gold by weight, so 24-karat gold is pure gold.
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What does 570 mean on jewelry?

AURUNA® 570 is an alkaline-cyanide alloy electrolyte for depositing green-yellow gold coatings. The gold-silver alloy has a fineness of approx. 18 carats. The coatings are gold-saving, they are bright even as thick layers. For thin layers, a variant with a low gold content is available (AURUNA® 570 LC).
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How to recognize Jewelry marks and know what they mean.



What does 310 mean on jewelry?

Announcement (310) Boutique: Named for metropolitan L.A.'s area code, California is my muse: gorgeous coastlines, the glamour and sophistication of classic old Hollywood, the smoothness of the salty ocean air. I hope that you make (310) Boutique your source for stylish, one-of-a-kind, distinct jewelry pieces.
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IS 585 real gold?

'585' gold is just one of many different types of hallmarks. If a gold product bears the hallmark '585', then your gold has been tested and classed as 14 carat or 58.5 per cent pure. The remaining 41.5 per cent of the item is composed of different metals such as nickel, copper, or in some cases silver.
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What is 417 Italy gold worth?

In short words, 417 gold is another word for what a 10-karat gold is. Its value per gram is $23.13 and $35.85 per pennyweight.
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Is 375 a gold stamp?

Pure gold is very soft so is unsuitable for jewellery as it would mark easily, the claws holding gemstones would bend easily as well. 37.5 indicates it is 37.5% of pure gold. It means the same as 9ct. Yellow gold has other additives such as Silver, Copper and Zinc.
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Is 375 gold good quality?

375 Jewellery a.k.a 9 Karat Yellow Gold

If a gold product contains the hallmark '375', that means your gold is 9 karat – or 37.5 per cent pure. The remaining 62.5 per cent of the product is an alloy of different metals, like nickel, copper, or in some cases silver.
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What does 575 mean on jewelry?

Common purity stamps are: 999 or 999.9 indicating 24 karat gold. 585, 583, 575 or 14K indicating 14 karat gold. 417 or 10K indicating 10 karat gold.
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IS 525 real gold?

'375' is the mark for 9ct gold, which means it is 37.5% gold and 62.5% other alloys, '525' is the mark for 14ct gold meaning 52.5% is pure gold and 47.5% is other alloys and '750' is the mark of 18ct gold, meaning it is 75% pure gold and 25% other alloys.
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What does 950 mean on jewelry?

To protect American consumers, a high-content platinum alloy will be marked 950Pt, 950, plat or platinum, meaning that it's at least 95% pure, elemental platinum. It's also the only platinum alloy that can simply bear the “Platinum” stamp to identify that it's 95% pure platinum.
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What markings are on real gold?

The 3-digit stamp sequence generally gets identified as follows:
  • 999.9 or 999 – 24 karat gold.
  • 995.
  • 990 – 23 karats.
  • 916, 917 – 22 karat gold.
  • 833 – 20 karats.
  • 750 – 18 karats.
  • 625 – 15 karat gold.
  • 585, 583, 575 – 14 karats.
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What is the symbol of hallmark gold?

According to the Department of Consumer Affairs website, hallmark consists of 3 symbols which give you some information. In this, the first symbol is the BIS logo, the second symbol indicates purity and fineness and the third symbol is the HUID.
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How can you tell if gold fake?

Gently drop your gold item into the water. Real gold is a heavy metal and will not float, so if your gold item floats you know it is not real gold. Also, if you notice rust or tarnishing on the item after being in water, this is also a sign it is not real gold since gold doesn't rust or tarnish.
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What does 925 mean on jewelry?

The 925 stamp on silver jewellery is all about the purity of the silver. It means that for every 1000 parts of material in the jewellery piece, 925 parts must be made of silver and no more than 75 parts should be a different metal. It breaks down into 92.5% silver and 7.5% an additional metal.
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What does 925 mean on gold?

If you have a gold piece with a 925 mark, it's most likely sterling silver underneath gold plating. You'll normally see this kind of stamp on a gold vermeil (pronounced as "ver-may"), meaning that it's sterling silver that has gold plating.
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What does 750 mean on jewelry?

If a gold product bears the hallmark '750', then your gold has been tested and classed as 18 carat or 75 per cent pure. The remaining 25 per cent of the item is composed of different metals such as nickel, copper, or in some cases silver.
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What does 980 mean on jewelry?

The 980 tertiary mark was generally used on all jewelry and tea strainers. Spratling said that 980 silver had a softer glow and complemented a woman's skin when used in jewelry. 980 silver also is more resistant to tarnish.
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What does 583 mean on gold?

Just like the “585” stamp, a “583” stamp means that a ring, watch or other piece of jewelry is made using 14K gold. The price of gold jewelry stamped 585 or 583 is identical to that of gold stamped with 14K or a similar marking — there's no difference in price, value or purity.
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What does 960 mean on jewelry?

Argentium, on the other hand, contains a larger amount of pure silver depending on its grade — 935 which contains 93.5% pure silver, or 960 which contains 96% pure silver — while the remaining amount is made up of other alloys, such as a small amount of germanium.
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