User blog comment:Saren the Dark Lynx/SFW Summer 2015 Awards Entries/@comment-1942179-20150728203329/@comment-25627885-20150728220339

Sorry. Well, for them I'd say they are the product of a mixture of alchemy and maybe a bit of metalworking. Maybe a lost civilization of sorts created and flourished with these rings only to die off due to mysterious reasons. leaving the rings as their only legacy/treasure/proof of their existence.