Kate Middleton's Most Treasured Jewels Aren't Just Striking — They're Full of History

Diana's emeralds
The choker was made up of some of the Cambridge emeralds, and given as a wedding present from the Queen to Princess Diana. She famously wore it as a headband in the '80s, along with diamond and emerald earrings and a bracelet which had been given to her by Prince Charles as a wedding gift.