#corundumgems
Love rubies’ fiery red glow, or sapphires’ celestial blues?

These gems share a secret: they’re varieties of corundum, responsible for some of the most beautiful and durable gemstones in jewelry design. This is how they're created...

https://www.hermj.com/what-is-corundum

 #corundum  #corundumgems
December 13, 2025 at 6:02 PM