Guides
A 2 carat round is about 8.1 to 8.2 millimeters across.
It is not twice the diameter of a 1 carat. Area grows faster than diameter, so a 2 carat looks substantially larger than a 1 carat (6.4 mm) without being twice as wide. On the hand it is a large center.

A 1.80–1.90 ct stone sits just under the 2 carat price step and can be within about 0.3 mm of a true 2.00 ct. The 2 carat pages on Carat Mate use a narrow window around 2 carats so the listings match the search.

Ovals and pears at 2 carats look longer still. Check depth: a very deep 2 carat faces up closer to a 1.7 carat.
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.
