In the final episode of the first series of History Gems, Nicola is joined by historian, author and royal commentator Professor Kate Williams to delve into the story of Mary Queen of Scots - and of course, her love of jewels.

Nicola and Kate explore why Mary was sent to France, who was fighting over her pearls and why mystery remains over the location of a jar containing her heart.

To see images of the jewels and other items discussed in this episode, check out @historygemspod on both Twitter and Instagram.