What does 50k stamped on jewelry mean?

The "50k" stamp on jewelry typically indicates that the piece is made from 50% gold, meaning it is 12 karats. This marking is less common than higher karat gold stamps, like 14k or 18k, which contain a higher percentage of gold. The "k" stands for karats, a measure of the purity of gold in an alloy. Always consider verifying with a professional if you're unsure about the quality or authenticity of the jewelry.