Diana’s sapphire engagement ring – £300,000
Kate’s blue sapphire and diamond engagement ring was worth £28,000 when it was first bought by Princess Diana following her engagement to Charles in 1981.
The stunning piece is estimated to have increased tenfold in value since then and is currently valued at around £300,000.
Princess Diana’s sapphire earrings – £150,000
These earrings are part of a stunning suite of jewels given to by the Crown Prince of Saudi Arabia.
Made by Asprey, a watch, bracelet, earrings, ring and necklace were included in the set.
Diana wore the earrings and necklace often and famously has the bracelet made, inventively, into a choker.
The suite would likely sell for millions and it is hard to value the earrings alone, although they would likely auction for at least £150,000.