Beyoncé Wore a $165 Dress to Rihanna's 3rd Annual Diamond Ball

Rihanna may have been the lady of the evening, but Beyoncé and JAY-Z took the title of king and queen at the "Wild Thoughts" singer's Third Annual Diamond Ball, as they turned heads during their first red carpet appearance since welcoming twins, Rumi and Sir Carter.

On Thursday evening, Bey was treated to a night on the town, first hitting up Broadway hit Dear Evan Hansen, and then opted to go full-on glam at RiRi's annual star-studded extravaganza, which benefits the Clara Lionel Foundation.

Living up to her #Flawless reputation in a surprisingly affordable emerald green wrap dress by House of CB ($165, houseofcb.com) with a daring thigh-high slit, the "Lemonade" hitmaker—who gave birth back in June—looked positively radiant. She stuck to the night's theme, dripping herself in diamonds with elegant drop earrings and glittering cuffs on both wrists.

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The 36-year-old showcased her glowing complexion with minimal makeup, curled her honey-hued locks into bombshell waves, and finished off her ensemble with platform black heels.

Meanwhile, the rapper, who was spotted holding hands with his love during the night, couldn't have looked happier as he posed for photos in a dapper black suit and bow tie.

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Parenthood is a good look for this Hollywood pair!