Brand: Tiffany & Co. Type: Crown Key 0.64ct Diamond Total length: 50 cm (19.69 in) Top W 19.3 mm (0.76 in) x H 50.0 mm (1.97 in) Polished at our partner workshop Actual size measurement Material: Pt950Platinum Accessories: Outer box, inner box Condition: Used Bullion...Fine Scratches Since it has been polished, there are no noticeable scratches and the item is in good condition. Outer box...a little scuff, a little dirty Inner box...a little Scuffs, so us if it is at different times. Stone type: Diamond 0.64ct Size notes: Chain width: 1 mm (0.04 in) Fastener maximum width: 6 mm (0.24 in) Vatican inner diameter: 4 cm (1.6 in)0x3.0 mm (0.12 in) The top is removable.