NATALIE PORTMAN – In 2010 the actress announced that she was both engaged to and expecting a child with dancer Benjamin Millepied. The pair reportedly married in 2012. Jeweller Jaime Wolf designed the ring – featuring conflict-free diamonds and recycled platinum.
BEYONCÉ – The ring, by Lorraine Schwartz, features a large emerald-cut 18-carat diamond at its centre.
MARY-KATE OLSEN – The ring was revealed to be a vintage Cartier creation, thought to originate from the Fifties, which was sold at auction in New York for just over $81,000. The central four-carat diamond is surrounded by 16 sapphires, and the gold petals (only visible from the side view) are set with diamonds.
ANGELINA JOLIE – The ring – featuring a tablet-shaped diamond at the centre – was designed by Brad Pitt and the pair’s jeweller friend Robert Procop.