FAQ - Diamonds, Size Chart Illustration

A Millimeter to Carat Weight Conversion Chart

Diamonds are often set into our mountings using a millimeter to carat weight system. For example, a 4.1 mm round diamond would equate to a 1/4 carat diamond. The illustration below shows the diamond shapes (round, square, oval...etc), their millimeter size and their carat weight equivalents. 

Want to Learn More?

Here are some great resources...

Diamonds - The 4 C's

Diamonds and Gems - Stone Shapes

Diamonds - The Parts of a Diamond

Diamonds - The Ideal Proportions

If you have any questions, please feel free to email us at service@theblackbow.com or call us at 1-866-620-2638 or visit us at www.theblackbow.com. We are always happy to help!