This ring is a size 6 (USA). Markings: Not marked (Tested & guaranteed to be Sterling Silver) This ring weighs 5 Grams The Stone/Design is a Turquoise Scallop - Natural, industry-standard treatment if any The Stone/Design measures 11 mm The Ring face measures 22.2 x 21.6 mm The condition of this ring is Estate, Very good, a hairline fracture in stone and very subtle scratching, mild patina This vintage item is circa 1970 Thank you for viewing my item! Favorite the store to get updates when items go on sale!