This ring is a size 7 3/4 (USA); It may be resized. Markings: Not marked (Tested & and guaranteed to be Sterling Silver) This ring weighs 10.5 Grams The Stone/Design is Blue, Red Turquoise, Coral Leaf, Double No treatment coral, Natural turquoise, industry-standard treatment if any The Stone/Design measures 9.6 x 7.3 mm (red stone) 13.1 x 9.1 mm (blue stone) The Ring face measures 36.9 x 19.9 mm The condition of this ring is Estate, Very good, moderate patina This vintage item is circa 1970 Stock# R4310Dor Thank you for viewing my item! Favorite the store to get updates when items go on sale!