Dating to the 1960s or so, may I offer this handmade silver ring, Native American in style and manufacture, featuring a single cab of green/blue turquoise with natural matrix. Condition is excellent with no problems I can spot save for some of the pink residue from the silver polish still showing in my pics - sorry.
Metal Content: Sterling Silver. No hallmark as is the norm with Indian jewelry made on the reservation (artisans could not afford a STERLING stamp). Metal was lightly acid tested for content. As to a makers mark, there is a "stipple pen" N on the underside of the top.
Size: Ring size is small at 4-1/4. The top design measures 5/8" x 9/16".
Weight: 3.6 grams
Final Comments: Adorable!