What is Italy 925 SU?

925 SU is the Italian hallmark for gold and precious metals.

Introduced in 1861 following the unification of Italy, the hallmark is applied to objects containing at least 92.5% silver.

Gold items are hallmarked with the abbreviation of the town where the item was certified.

Gold and platinum items must also display a 5-digit number, denoting the metal’s manufacturer and the year it was produced.