This ring is a size 10 (USA) Markings: P. Sanchez, Sterling (Tested & guaranteed to be Sterling Silver) This ring weighs 16 Grams The Stone/Design is Blue Spiderweb Turquoise Large Natural, industry standard treatment if any The Stone/Design measures 27.4 x 19.2 mm The Ring face measures 29.6 x 20.3 mm The condition of this ring is Estate, Great, light patina This vintage item is circa 1990 Thank you for viewing my item! Favorite the store to get updates when items go on sale!