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"And if the event is in the evening, opt for darker tones." Here are five more rules to help guide your semi-formal outfit selection

Photo: Debbie Wingham After the launch at the Billionaires Club in Monte Carlo, next the Worlds Most Expensive Black Diamond Dress was displayed at The Fairmont Grand Hotel Kiev during a fashion show

Its milder and less cloying than sugar, and imparts a subtle flavor that blends seamlessly with savory ingredients

Between sizes, go up

Beyond denim, if you're leaning towards more traditional dinner outfit options, a beautiful cocktail dress is always a winner

This A-line wedding dress stuns with a strapless sweetheart neckline and sculpted bodice, paired with detachable off-the-shoulder sleeves for a versatile look