Luckily, Princess Diana took Stambolian’s advice ... She paired it with a sparkling sapphire, pearl, and diamond choker, black sheer tights, black heels, and bright red nails – a rarity ...

“Notably, she chose to wear her sapphire engagement ring (passed down from Princess Diana ... including Queen Elizabeth’s pearl choker and Diana’s Collingwood pearl drop earrings.

The emerald and diamond choker was given to Princess Diana after her royal wedding Erin Hill is the Senior Editor, Royals at PEOPLE. She has reported on Royals for the brand since 2015.

The Princess Royal attended the ... Anne paired the frock with with an opulent pearl choker with vertical diamond encrusted bars, and a hexagonal blue sapphire in its center at the brooch.

Princess Diana’s iconic sapphire and diamond engagement ring now belongs to Prince William's wife Kate Middleton Ariana Quihuiz is a contributing writer at PEOPLE. She has been working at PEOPLE ...