|A deep Red Spinel weighing 398.72 carats adorns the famous Great Imperial Crown. Made by court jeweler Jeremie Pauzie, the crown was created for the coronation of Catherine the Great in 1762.|
|The Maria Alexandrovna Sapphire Brooch. The deep-blue Ceylonese Sapphire weighs 260.37 carats and is set in a high mount of gold filigree decorated with diamonds. |
The Columbian Emerald weighing 136.25 carats.