Kate Middleton's dazzling jewellery collection drew gasps of admiration when she visited the Art Room project at Northolt High School, London, on Friday.
HELLO! Online takes a look at the secrets behind the gems.
The rings The Duchess was spotted wearing three rings on her wedding finger for the first time – leading some to wonder whether she was wearing an eternity ring alongside her wedding band and engagement ring. Eternity rings are traditionally given by a husband to his wife after the birth of their first child.
The watch
Kate is rarely seen wearing a watch in public, but this beautiful £3,550 Cartier timepiece features as sapphire that perfectly matches the gem in her engagement ring, which previously belonged to Princess Diana. It also made an elegant accessory alongside her Snorkel Blue LK Bennett dress.
The earrings:
The Duchess also wore £1,200 Kiki Green Amethyst and Diamond Cushion Drop earrings by British brand Kiki McDonough. The earrings, which feature an 18ct gold and diamond hoop, were first worn by Kate on a visit to Sandringham at Christmas 2011. Kate was a fan of the brand before she married Prince William. Kiki also designed jewellery for Diana, Princess of Wales.
The necklace:
Kate was also thought to be wearing Mappin & Webb's £3950 gold drop necklace, which features 0.67 carats of brilliant-set diamonds set within three 18-carat white gold infinity loops. Mappin & Webb describe the necklace as "a celebration of luck and good fortune".