Antique sterling silver Navajo ring from the 1920s. This is set with a single oval  green turquoise stones that was likely blue at one time.The shank is stamp decorated. Nice stamped fans in the design. 

The shank is cracked in the back which makes it adjustable. It was made as a size 7. Weight;5 grams. 

🦋 Note: This has been left in original patina and condition. This means that it is  tarnished, may have crusty old silver polish, verdi gris and general grunge. My sophisticated collectors sternly request that I do not polish or clean these early pieces leaving the patina as found. I agree with them. Once you clean away the patina, you cannot put it back.

However, if you like your jewelry shiny and new, you can clean it with a soft toothbrush and a little water keeping in mind that the stones are usually not glued in place and if so it was done with tree pitch and not modern glue, so clean with care. It will polish up, but take care to not remove all of the patina.