Carat is one of the most misunderstood aspects of diamond buying. Here is what you actually need to know.
Carat = Weight, Not Size
One carat equals 200 milligrams. But two diamonds of the same carat weight can appear different sizes depending on their cut and shape.
How Shape Affects Appearance
- Oval appears 15-20% larger than round
- Marquise appears up to 30% larger
- Round standard reference point
Smart Buying Tip
Consider a 0.9ct diamond instead of 1.0ct — visually nearly identical but significantly less expensive. Browse our 1 carat collection and 2 carat collection.