Definitions

1. noun

a unit of weight for precious stones, equal to 200 milligrams

“The diamond weighed 2 carats and was valued at a high price.”

2. noun

a unit of weight for pearls and other gemstones

“The pearl necklace was a 4-carat piece of beautiful jewelry.”

3. verb

to weigh or measure something using carats

“The jeweler carated the diamond to determine its value.”