Understanding 725 Silver: Purity and Metal Alloys in Jewelry

The number "725" stamped on a necklace usually indicates the purity of the metal used to make the jewelry. It means the necklace is made of 72.5% pure silver alloy, with the remaining 27.5% consisting of other metals. In jewelry, metal is often alloyed with other metals to enhance its strength, durability, and color. The "725" stamp, similar to stamps like "925" for sterling silver, is a way of marking the precious metal content of the item.