The metal portion of the ring is cast sterling silver polished to a very very high shine.
Stone is natural and untreated.
Important Note: Iolite is prone to internal crackling, the stones in these rings will start pristine or near pristine and over time develop a unique series of internal crackles. They are not prone to shatter, the stone will stay in one piece. However it would be difficult to maintain a perfectly clear iolite of this size worn on a ring for very long. These crackles are generally thought to enhance the beauty and uniqueness of iolites in jewelry, but make sure this is an idea you like. :)
If you're a person who thinks most semi-precious gems look too much like glass, then you'd probably like this ring.
Photographed outdoors during the day, no post production was used on the photo.
Stone is 10x8mm long by wide
Made In USA
Like this style, but not this stone?
Check out the Heaven's Compass ring at https://www.etsy.com/listing/106126181/
and the Midnight Compass ring at https://www.etsy.com/listing/106141639/