Moissanite is measured for size based on its length and width, rather than carat weight like diamonds. Since moissanite is approximately 10% lighter than a natural diamond, its size is expressed in millimeters rather than carats.

Relating the two measurements is straightforward and simple. For example, a 6.5 mm moissanite round cut gemstone would be equivalent in size to a 1 carat diamond, although it would weigh less. Visually, they would appear identical. For instance, 6.5mm is equivalent to 1.0 carat.

Do carats still apply to moissanites?

To ensure ease of understanding for our clients, we mention the size of moissanites in carats, as it is the most familiar measurement. If you have a specific carat weight in mind, we will gladly assist you in converting it to the equivalent moissanite size. Our aim is to provide a seamless experience and help you find the perfect moissanite size that aligns with your preferences.

 

Round mm size to carat size chart

Cushion mm size to carat size chart

Princess mm size to carat size chart

Oval mm size to carat size chart

Pear mm size to carat size chart

Radiant mm size to carat size chart

Emerald mm size to carat size chart

Marquise mm size to carat size chart