Spinel!
Apparently a large percentage of the "rubies" in the crown jewels are actually spinels. These days they are much more commonly found lab created, and they are usually the type of stone used for birthstone jewelry as they are inexpensive, durable, beautiful, and can be created in almost any color.
Apparently a large percentage of the "rubies" in the crown jewels are actually spinels. These days they are much more commonly found lab created, and they are usually the type of stone used for birthstone jewelry as they are inexpensive, durable, beautiful, and can be created in almost any color.




