Brand: Tiffany & Co. Type: Carre Scope Key 0.68ct Yellow Diamond Total length: 40 cm (15.75 in) Top W 18.3 mm (0.72 in) x H 51.7 mm (2.04 in) Actual size measurement Material: Pt950Platinum 750Yellow Gold 750White Gold Color: Yellow series x Silver series Accessories: Condition: Used Bullion...Fine Scratches There are few noticeable scratches, and the item is in good condition., so us if it is at different times. Stone type: Yellow diamond 0.68ct diamond 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. Clarity: IF Color: Fancy Intense Yellow Polishing Condition: Excellent Symmetry: VERYGOOD Fluorescence: FAINT Diamond shape: Modified brilliant