What you have is a nice old sterling ring. Typical rings of this nature have a story to tell. You can tell what area of the nation and sometimes what mine the turquoise came from, based on color and matrix. The style and the size suggests it to be made by a Navajo member. This would be considered "Old Pawn" or Dead Pawn" It is very collectable if you look on E-Bay. These were made to sell and to trade. Some very talented Indians would make rings and bracelets and trade them for foods and supplies. The would then come back and pay in cash then the shop owners would return the item to them once paid. If the Indian did not come back it would be considered Dead Pawn and the shop owner would then sell it. Many are marked and some made by very famous people and are worth a lot of money. The silver came from Coin or it was mined in the area. With no marking I would say it was made before 1930 and the sale value should be around $40-75. Silver vale is not an issue here the style, age and stone make the ring. Jim
