Carat vs. Color  Length*  Width*

(or examine a single gem)
* size in mm (optional)

Gem Size Comparison

GemSize is a web application for comparing and learning about gemstone shapes and sizes. It enables you to compare actual gem sizes, which you can view on a ring and finger of arbitrary dimensions, giving you an idea of how the gems would look on your finger.

To start just select the gem, its weight, shape, color and size (optional), and click compare. You can compare two gems side by side or examine a single gem.

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