Ammonites went extinct with Dinosaurs 65 million years ago. Ammonites survived until the end of the Cretaceous period in a sea that covered what is now Alberta. Canada and Montana, USA. These ammonites were transformed into the rare gem known as Ammolite.
Cora Sun-Drop, claimed to be the world’s largest known vivid yellow pear-shape diamond. Mined in Africa. The diamond gained its color from the minimal amount of nitrogen in its carbon structure, making it extremely rare in nature.
Ethiopian opal is still a new gemstone. Ethiopian opal is quite unique and different from more common Australian and Mexican opal. Not many people know about this opal yet. I am a gem cutter and have worked.