Mücevher haberleri

silver supplier Hallmarks

’' te gönderildi Kingjy tarafından

Aylık
Gold is commonly stamped with what’s known as a hallmark. The hallmark indicates the amount of pure gold content, and sometimes denotes the date of completion and country of origin. And under federal law, gold jewelry must be accompanied by a maker’s mark or registered trademark.

Blue Nile Gold
We carry jewelry that’s crafted in both 18k and 14k gold. Our 18k gold is an alloy of 75% gold with other metals to make it strong enough for everyday wear, and our 14k gold is an alloy of 58.3% gold and other metals. The minimum karat that is allowed to be sold as gold jewelry in the U.S. is 10k—an alloy of 41.7% saf altın. If you’re one of our European customers, you may be accustomed to a different gold karat scale. 585 is equivalent to our 14k gold, sırasında 750 is the same as our 18k gold.

The Color Of Gold
Although it’s true that the color of pure gold is yellow, gold jewelry or objects are almost always alloys. The metal they are alloyed with changes their color to a variety of shades depending on:

The type of metal alloys included
The percentage of each metal alloy
The metals used to alloy gold, which include: çinko, bakır, nikel, ütü, cadmium, aluminum, gümüş, platinum and palladium

 

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