Brand: Tiffany & Co. Type: Crown Key Diamond Total length: approx. 40.5 cm (15.94 in) Top Width: approx. 13.8 mm (0.54 in) x Height: approx. 40.5 mm (1.59 in) *Actual size measurement Material: 750 pink gold Accessories: None Condition: Used Necklace: There is a small scuffs that can be seen with a magnifying glass. But the item is in good condition. Stone type: Diamond Size notes: Chain width: approx. 1.0 mm (0.04 in) Fastener maximum width: approx. 6.0 mm (0.24 in) Vatican inner diameter: Width: approx. 2.8 mm (0.11 in) x Height: approx. 4.6 mm (0.18 in) Total weight: 4.4g