Rosecut herkimer diamonds set in high sterling bezels with slender stardust-textured bands. Very pretty as pinky rings, too.
Your ring will vary but will be in keeping with the style pictured. Due to the thin nature of these bands, ring sizing usually errs upward (that is: a technical 6 may accommodate slightly larger sizes, etc). 
NB: Herkimers are raw quartz stones. Crackles and divots are natural. Taking care not to hit your stone on surfaces will prologue its life.