Vintage 14K Gold Women's Ring-wedding band

The mark "14K" inside a gold ring is a hallmark indicating its gold purity. Gold Purity Explained Karat System: Gold purity is measured in karats, with 24K being pure (99.9%) gold. 14K Content: A 14K stamp means the ring is 14 parts pure gold out of 24 total parts, which is equivalent to 58.3% pure gold. Alloys: The remaining 41.7% is composed of other metals (alloys like copper, silver, or zinc) added to increase the ring's strength and durability, as pure gold is very soft and prone to scratching and bending. European Equivalent: In some countries, the equivalent mark would be "585" in the millesimal fineness system, which indicates 585 parts per thousand pure gold.