Diane was attending the premiere for her new black and white art house film, The Better Angels at the Berlin International Film Festival last night and her fabulous nails were definitely the hands-down winning part of her outfit!
At first we thought Diane had gone very simple with her whole look, wearing a chic, floor-length white dress; side-parted, natural hair and statement red lips.
But then we spotted that manicure. And wow!
Kelly Osbourne first brought love-heart nails to our attention at the SAG Awards last year but we have to admit, we think Diane's take on the look might just beat our Kelly's.
Whereas Kelly went for deep pewter, sparkly love-hearts on the tips of her pointed nails, the Inglourious Basterds actress chose a much more classic version with a shiny, deep berry red polish and soft, rounded tips.
To copy Diane's look, first apply a base coat to your nails, then grab a thin brush (an eyeliner or lipliner brush will do the job perfectly) and dip this in your berry red polish.
We love Maybelline Colour Show Nail Polish in Burgundy Kiss, £3.99, superdrug.com.
With your brush, draw a lower case 'w' about a third of the way up one nail, then paint your nails above this 'w' only.
Repeat this on all your nails, then apply a second coat after the first has completely dried.
Finish by painting over your whole nails with a glossy topcoat like Estée Lauder Pure Colour Instant Finish Quick Dry Topcoat, £12.50, boots.com.
And let the Valentine's cards come flooding in!
Let us know what you think of Diane's Valentine manicure below. Our fave comment across the site each week wins £50!
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