Marquise Ring, Blackened Solid Silver - Crystal - Size 57.5 Fr. Vintage, Antique Style. Beautiful Marquise ring, tested with appropriate acid. Good vintage condition Size 57.5 FR or approximately 18.3mm Its weight 4.7 g The presentation box is not included Condition: Used: Item has been worn. ...Used: Item has been worn. any potential imperfections. Dominant stone: Crystal Brand: Vintage Type: Set ring Dominant color: Silver Size: 57.5 Material: Non-Metal: Sterling silver