375 stamp means 9ct solid gold. 750 or 18k are solid 18 carat gold. After you receive the item always get them checked by a professional. Gold Purity - 14k gold filled. Hallmark - 14K (Tested as gold filled 14k jewellery).
Main Stone type Agate. US Ring Size 5. UK Ring Size J 1/2. Size of Ring Face(North to South by East to West) in millimeters NA. Length and width of main stone in millimeters 14 x 6.5. Inventory Number.