Diamond Carat Size

Carat weight is the measurement used to describe the size of a diamond or gemstone based on its weight.

Diamond Carat Sizes - Grading Scale

Each diamond or gem is individually weighed to determine that stones carat weight. On the metric scale, 1 carat is equivalent to 200 milligrams, or 0.2 grams.

While carat weight can impact the value of a diamond, it’s important to understand that two diamonds of the same weight may have drastically different values. This is because a diamond’s value takes into account all of the 4Cs, not just carat weight.

Which diamond carat size should I choose?

While engagement ring preferences vary depending on the person or current trends, the average engagement ring carat size is about one carat. Popularity fluctuates depending on region, with European countries preferring a smaller average size of 0.5 carats and American's preferring an engagement ring size between one and two carats.