Oxidized Silver & Turquoise "North America" Ring

This Turquoise with black matrix ring resembles a map of North America!  The stone is set in fine silver on a base of sterling silver.  Hand cut 'mountains' in fine silver follow one edge while a barrier of patterned silver arcs across the other.  Fine silver balls and a small triangle of Mokume gane add interest within the piece.  This piece has been antiqued (blackened) to bring out the depth.  The tapered band was hand made and rolled with a pattern.  It is adjustable in that it is springy and moves to accomodate finger sizes throughout the day, etc.  It could be made slightly larger permanently if needed.
 
Size 7 1/4