Item from Half-Blood Prince by J.K. Rowling
A Horcrux destroyed by Dumbledore before the year began — the cursed ring that blackened his hand and began the countdown to his death. It holds the Resurrection Stone, though Dumbledore only half-understood what he found.
Also known as: Marvolo Gaunt's ring, the Gaunt ring, the Horcrux ring, the Resurrection Stone ring