1. a unit of measurement for the purity of gold, with 24 karats being pure gold

Examples

• The ring is made of 18-karat gold.
• Pure gold is 24 karats, but jewelry is often made with 14-karat gold for durability.
• She preferred the 22-karat gold necklace over the 10-karat one.
• The jeweler explained that higher karat gold is softer and more valuable.
• Most wedding bands are made from 14-karat or 18-karat gold.
• The antique bracelet was stamped with ’10K’ indicating 10-karat gold.