Orangey red spinel.
The listing included the setting inspiration:
And I was hooked!
I've done some searching to no avail to find this setting elsewhere. I'll probably have it made custom.
Any input for the process would be welcomed!
I thought that piece was made by Julia kay Taylor...but I could be mistaken. It really looks like one of hers. She has her own website I'd check into that, and if it's not hers I know she makes things very similar.