I've been collecting these vintage glass stones from Providence Rhode Island for many years. Did you know that Providence was the jewelry capitol of the world for a century and many of the materials including stones such as these are still in warehouses and in the collections of hoarders such as myself.
The sparkley stone is an orange CZ (cubic zirconia)
The shank of this ring is sterling silver while the bezels are a combination of sterling and bronze.
Be sure to let me know your ring size and we'll customize it for you.