Precious metal
Brief information about the precious metal:
Sterling silver (.925 silver): Consists of 92.5% silver and the rest is copper. It is copper that makes the silver stronger.
Fine silver (999 silver): Is it pure silver; no other metals are included in it. Fine silver is softer than sterling silver because it is pure silver so it is processed to become hard enough.
Gold:
24 carat gold is the purest gold (100% gold).
18 carat gold consists of 75% gold and the rest .
Gilding with 18 carat gold or 24 carat gold means that the chain or piece of jewelery has been treated with a thin gold coating, for example.