Guides
At 3 carats, size itself is the scarce part. Grades still move the price, and origin moves it more.
Natural 3 carat diamonds with strong color and clarity are priced for collectors and high budgets. Lab-grown 3 carat diamonds make that size reachable for more shoppers, with the same grading language on the report.


Use the 3 carat pages to see current asks. A price you remember from a guide will not match the market next month.
Carat Mate lists certified loose diamonds for shoppers in the United States, Canada, the UAE, London, and Australia. Prices are in USD everywhere. We ship to the United States, Canada, the UAE, London, and Australia.
