The same pear-shaped pendant-jewel as seen in Holbein's portraits of Jane Seymour and an unknown sitter formerly identified as either Catherine Howard or Mary Monteagle. Sources: # drawing of Seymour, Royal Collection # painted portrait of Seymour, Kunsthistorisches Museum, Vienna (there's also a workshop copy in Mauritshuis, The Hague) # portrait miniature, Royal Collection (a similar miniature, also by Holbein, is in the Strawberry Hill House, part of the Buccleuch Collection)