Diamond jewelry took center stage at this year's 84^th Annual Academy Awards. Hollywood actresses and personalities accessorized with a variety of diamond rings, diamond bracelets and diamond earrings at the Awards' Red Carpet and surrounding parties' after-parties.

My Week With Marilyn Best Actress Academy Award Nominee Michelle Williams, was among the event's many celebrities who wore jewelry set with De Beers' Forevermark diamonds. She wore a 30-carat Fred Leighton for Forevermark Brilliant Cut Diamond Necklace set in Silver on Gold.

Among other Forevermark designer collaborations seen on the red carpet include: Kimberly McDonald for Forevermark; Mimi So for Forevermark; Rahaminov for Forevermark; A. Link for Forevermark; Ritani for Forevermark; Crossworks for Forevermark; and Neiman Marcus for Forevermark.

Additionally, Rio Tinto's Argyle pink diamonds were also showcased during the Academy Awards ceremony.

Livia Firth, wife of Academy Award-winning actor Colin Firth, wore a pair of John Calleija earrings and a ring featuring Argyle pink and blue diamonds.