This is a Lot of 4 Sterling Silver & Gem Rings - Turquoise & Chalcedony. They are sizes 6 - 10 3/4 and measure 11/16" - 7/8" tall. They are marked 925 or have been tested as silver so it is between .800 - .925 in purity. They weigh a total of 30.5 grams. They are in very good condition and would make a wonderful addition to your collection!