Weight is good for the form at about 4.6 grams on my portable digital scale. Condition is quite fine with a nice aura of time to the silver surfaces as seen in the pics. The turquoise is attractively patinated - there is a tiny tight line at the side of the top one, I believe there when set. There is an ancient sizing join at the very back of the shank, well accomplished and possibly done at the original getting.
Such typical and expected signs of period finger duty provide more evidence of a genuine history. A look at those pics should give a good idea of appearance and condition.
Size is about 3 3/4 or possibly 4 on my jeweler's ring mandrel (the bottom edge of the shank reaches between those lines on the mandrel). I'm not sure what else need be said, so there you are. THIS IS LISTED AS U. The item "NAVAJO FRED HARVEY TURQUOISE SILVER SNAKE RING 4.6 GMS VINTAGE TUCSON ESTATE" is in sale since Wednesday, January 2, 2019. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Native American\Rings". The seller is "pooterpee" and is located in Tucson, Arizona. This item can be shipped to United States.