This authentic ring is from Tiffany & Co. by designer Elsa Peretti from her Open Heart collection. It is crafted from 18k yellow gold featuring the open heart at the front with a curved style band with a pointed end with a small open space between the heart and the end of the band. It is signed by the designer with the metal content.Brand: Tiffany & CoHallmark: Elsa Peretti Tiffany & co. 750Measurement: front: 0.56" across x 0.60" wide x 0.13" highRing Size: 4Weight: 7.2 grams