Accredited Gemological Institute
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∙ 12y agoAccredited Gemological Institute
Accredited Gemological Institute
AGI on jewelry refers to the Accredited Gemological Institute, and when it appears on a piece of jewelry, it means that it is what it claims to be. The AGI has accredited it as such. If it is on a piece with a diamond, the diamond is genuine.
if a silver necklace with italy and agi real
Agi stands for Accredited Gemological Institute and Italy means made in Italy. Silver jewelry is usually made with sterling silver, which is composed of 92.5% silver and the remaining 7.5% is a mix of copper and other metals.
Formula: AgI
Silver Iodide
AgI
The letters in jewelry usually stand for the person who made it or the company. The 925 is the silver content of the jewelry. At 925 you have sterling silver and that is good.
The NS mark on jewelry can be either: Newburyport Silver Company of Keene, NH National Silver Company
Formula: AgI