Diamond Size Chart

Diamond Size Chart – Understanding Diamond Measurements

A Diamond Size Chart helps visualize the actual dimensions of a diamond in millimeters based on its carat weight. Many people assume that carat refers to size, but it actually measures weight—meaning two diamonds of the same carat weight can appear different in size depending on their cut, shape, and proportions.

Key Factors in Diamond Size Comparison:

1. Carat Weight vs. Diameter: A 1-carat round diamond typically measures about 6.5mm in diameter, while a 2-carat diamond is around 8.2mm.
2. Shape Impact: Different shapes distribute weight differently—Oval, Marquise, and Pear-shaped diamonds appear larger than Round diamonds of the same carat weight.
3. Cut Quality: A well-cut diamond reflects light optimally, making it appear larger than a deep-cut diamond of the same weight.
4. Visual Perception: A diamond’s table size (top surface area) plays a big role in how large it looks when viewed from above.