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https://bellatory.com/fashion-accessories/750-585-417-gold-markings-jewelry
Mar 11, 2020 · Answer: A 750 mark on jewelry means 18K gold. So it wouldn't be silver plated and could be white gold, but it shouldn't be tarnished either. Question: My ring has: "WR15", ".625", a sideways anchor, and "T" with a crest. What do these marks mean? Answer: Oh, these are interesting markings. I can tell you that a "625" marking on gold jewelry …
https://www.reference.com/world-view/750-stamped-jewelry-mean-596991d63afc5b1c
Aug 04, 2015 · The numbers 750 stamped on jewelry means that it is 18-karat gold. The jewelry piece is 18 parts pure gold and six parts metal alloy.
https://www.reference.com/world-view/750-jewelry-mean-9a55e32eb8e22e47
Aug 04, 2015 · A 750 mark on jewelry means that the metal alloy used to make the jewellery contains 75 percent gold or another precious metal. Most precious metals used in jewelry are alloys because the addition of other metals improves hardness and durability. It also changes the color of the metal.
https://community.ebay.com/t5/Archive-Fine-Jewelry-Gems/IF-MY-GOLD-JEWLERY-IS-MARKED-WITH-A-750-IS-THAT-SOLID-18K-GOLD/td-p/2503413
Mar 05, 2008 · Use formula 18 over 24 percent over 100 get 75 percent 750 over 1000 another way 24 k 100 percent pure. They sound like 18k, those other number marks are often seen on Italian jewery and are makers marks that are registered with that government for tax purposes.
https://www.leaf.tv/articles/how-to-identify-jewelry-markings/
Note that “750” or “18KP” marks also indicate 18-karat gold jewelry. Know that jewelry marked “14K” is 53.8 percent pure gold, or 14 parts pure gold out of 24. Look for other marks that indicate 14K jewelry, such as “585” and “14KP.”.
https://www.invaluable.com/blog/guide-to-jewelry-marks/
Apr 06, 2020 · A piece of jewelry with an etching that reads “18k” or “750” indicates that it is made up of 75 percent gold, while a “14k” or “585” mark indicates the metal is constructed with 58.5 percent gold.
https://www.leaf.tv/articles/how-to-identify-gold-jewlery-from-italy/
As stated by the authors at Goldprice.org, "Most jewelry in Italy is sold as 18 karat gold or higher, usually marked in the European markate of 750." European markage is another way to measure the quality of gold, in this case, its fineness. Traditionally, gold quality has been measured in karats, which indicates the level of purity of the metal.
http://www.amaterracrianza.com/jewelry-makers-marks-in-alphabetical-order/
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