Beyoncé wore over $10 million worth of diamond jewellery at the Grammy Awards.

The 32-year-old singer - who wowed audiences with a performance of her hit 'Drunk In Love' with her husband Jay Z - ensured all eyes stayed on her in a lace Michael Costello gown which she teamed with millions of dollars worth of diamonds from designer Jessica Schwartz's collection.

The stunning mother-of-one - who left her two-year-old daughter Blue Ivy at home during the event on Sunday night (26.1.14) - accessorised her white lace gown with chandelier earrings and statement cocktail rings on each finger of her right hand. On her left hand she added just one diamond-shaped cocktail ring to go with her 18-carat engagement ring.

Schwartz couldn't hide her delight that Beyoncé had chosen her pieces for the event at the Staples Center in Los Angeles.

A post on her Instagram page, accompanied with a photo of herself and the superstar, read: ''My muse, my friend, my bling queen - my true gem. (sic)''

Beyoncé wasn't the only star who chose to wear Schwartz's stunning pieces at the Grammys.

Rita Ora mixed her own family heirloom pieces with jewellery items from the designer's collection.