This ring is a size 10 (US). Markings: Sterling, (Tested & guaranteed to be sterling) This ring weighs 18.2 grams. The stone/design is Blue Turquoise Shield (Natural). The condition of this ring is estate, very good, not cleaned with original patina, center stone has a hairline crack, adds character. Extra Note: Over 85% of turquoise produced in the world has undergone stabilization treatment. It should be assumed this turquoise might be stabilized as well, and any other industry standard enhancement. Stock# R2129 NOTE: Variations in color in the pictures are due to reflections. The actual color is a beautiful even silver. Thank you for viewing my item! Favorite the store to get updates when items go on sale!