If this is pertaining to Tiffany's then it's the address of the store in new york city. I always wanted to know myself so I looked it up and then I put two and two together. It's basically just if you lose your jewelry someone can return it there, but they wont if its Tiffany's.
925 means the sterling silver contains 92.5% pure silver. The other 7.5% is made up of another metal. The reason pure silver is not often used in jewelry is because it is very soft, so mixing the silver with other metals makes it more durable, while still instilling it's precious value.
Pure Silver being soft and malleable, is often alloyed with other metal while making jewelry. 30% silver jewelry contains 30% of pure silver and 70% of other metals.
Pure Silver being soft and malleable, is often alloyed with other metal while making jewelry. 30% silver jewelry contains 30% of pure silver and 70% of other metals.
925 is a mark for "sterling silver", an alloy containing 92.5% silver and 7.5% copper. Other common alloys are 99.9% silver known as "fine silver", and coin silver marked 800/900, with silver content of 80-90%. the 925 mark is used for USA jewelery made for international markets, jewelery made for domsetic trade is marked "Sterling".
The 925 found on silver jewelery and other objects means that it is sterling silver which is an alloy of 92.5% silver and 7.5% of other metals which are mixed to improve the metal's strength and resistance to tarnish.
It means that your jewelry is made of sterling silver. The 925 represents that the jewelry is 92.5 percent silver and 7.5 percent of some other metal to strengthen the silver (this added metal is often copper). This is the highest commonly produced percentage of silver in jewelry, because any more would make the silver easy to bend