The necklace has been dated to the early 16th century and the royal references are plain to see. The reverse face features the letters 'H' and 'K' – presumably for Henry and Katherine – united by a twirling strip of lace.

The front shows them similarly united, with a pomegranate tree (the badge of Katherine of Aragon) intertwined with a red-and-white Tudor rose. Both sides feature the caption TOVS and IORS, seemingly a French-English pun on the phrases 'toujours' and 'all yours', while an ornate gold chain made up of 75 links holds the locket in place.

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