This ring is a size 6 3/4 (USA). Markings: Unmarked (Tested & guaranteed to be Sterling Silver) This ring weighs 14.6 Grams The Stone/Design is Blue Turquoise Leaf, Large Natural, industry standard treatment if any The Stone/Design measures 27.3 x 12.7 mm The Ring face measures 37.4 x 26.5 mm The condition of this ring is Estate, Great, moderate patina This vintage item is circa 1970 Thank you for viewing my item! Favorite the store to get updates when items go on sale!