#51: Tanzanite Necklace & Earrings

Worn by: Kate Middleton

Owned since: 2010s

Estimated value: $22,000*

Kate Middleton worked with royal jewelers G Collins and Sons to craft a dazzling tanzanite necklace and earring set valued at over $22,000 a while back. Eagle-eyed fans couldn’t help but notice its resemblance to some emerald pieces once worn by Princess Diana.

To those not in the know, tanzanite might easily be mistaken for sapphire. Since marrying Will in 2011, Kate has flaunted this glittering set on numerous occasions, like her 2018 visit to the Royal College of Obstetricians and Gynecologists.