Tiffany & Co key, the key is set with 20=0.30ct 11=0.22ct 1=0.08ct and 5= 0.01ct all are FG colour VS clarity round brilliant cut diamonds. The key is in platinum and is fitted with a Tiffany & Co open link chain in 18ct white gold. Key length: 4.0 cm. Key weight: 4.8 grams. Chain length: 50 cm. Weight: 3.3 grams. Stamped Tiffany & Co. With Tiffany box.