A vibrant red and green Ammolite Gemstone cabochon next to a fossilized ammonite shell.

Ammolite Gemstone: The Organic Jewel Guide

Introduction Discover the magic of the Ammolite Gemstone, one of the rarest gems on Earth. Unlike diamonds or rubies, which are minerals, Ammolite is an Organic Gemstone. It forms from the fossilized shells of ancient Ammonites (sea creatures) that lived 70 million years ago. The CIBJO officially recognized it as a gemstone only in 1981; it is a relatively new addition […]

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