Monaco's leading lady looked breathtaking in a sweeping strapless indigo gown that perfectly framed her slender figure.
A chic undo drew attention to her striking features — enhanced with just a touch of natural makeup — while her overall look was completed with pendant earrings, a bejeweled bracelet and lilac clutch.
South Africa-born Charlene is carving out quite a reputation for her flawless fashion choices.
She stole the show when she attended the Akris show at Paris Fashion Week at the start of the month, the epitome of elegance in a structured black shift dress. And at the Louis Vuitton runway presentation, she showed off her more daring, playful side with a bright fuchsia lipstick to brighten up her look.
Charlene, 35, has been highly praised for her elegant style, easy demeanor and exquisite wardrobe since her marriage to Prince Albert.
The down-to-earth Princess is still at ease in less formal attire though. Last month she swapped her designer dresses for a wetsuit to help raise awareness about water safety.
The former Olympic swimmer surfed the waves and helped to teach children to swim as part of the Live to Swim initiation.