HEAVY Signed 925 Charoite Ring

This ring is new old stock so it is unworn and unused.  Artisan signed chunky sterling silver ring features a beautiful 7/8 inch by 1/2 inch wide Charoite in a heavy, ornate setting.  I cannot read the hallmark in the ring, but I believe it is Native American.  The ring measures a ring size 7 1/2 and the face of the ring measures 1 3/8 inch long.  It weighs 36.4 grams and it is in excellent condition.