×
carat vs. color  length*  width*
  ×

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

About GemSize.org

GemSize.org is a free online tool for exploring and comparing gemstone shapes and sizes. It enables you to see actual, real-world gem sizes on a ring and finger, giving you an idea of how they would look on your finger. It will also neatly show you the face-up size difference of any two gems.

Please note: GemSize.org is not a commercial site and does not sell gemstones or jewelry of any kind.

Who Made It And Why?

This website was created and is maintained by one person, and that would be me - Gregor. In 2013 I launched diamdb.com, an in-depth size simulator tool focused on diamonds. People liked it, and some asked me if I could create something similar for all gemstones. Well, this is your answer.

While gemsize.org doesn't go into such depth as diamdb.com (which is the place to go if you're interested in diamonds), it offers the main attraction - the ring & finger "simulator", as people tend to describe it.

Have fun playing around and thanks for visiting!

Gregor



If you'd like to get in touch with me, use the contact form or send me an email at info(at)gemsize(dot)org.