What does 825 D Q on a ring mean?

The inscription "825 D Q" on a ring typically indicates the purity of the metal and possibly the manufacturer's mark. The "825" signifies that the metal is 82.5% pure, which is commonly used for sterling silver (though sterling is usually marked as "925"). The "D" could represent the designer or brand, while "Q" might refer to a specific quality or style code. Always consult with a jeweler for precise identification and value.