Blake Lively turned up the heat as she led the stars attending the Gem Awards held at Cipriani 42nd St in New York this Friday evening.

The 34-year-old movie star flashed the flesh at the glamorous affair, which as its name suggests is held to honor jewelers and watchmakers.

For her latest public appearance, Blake showed off her cleavage in a plunging charcoal top that also allowed her to bare her enviably sculpted midriff.

She selected a blouse that featured full sleeves as well as shoulder pads in a fashion statement reminiscent of the 1980s.

Sharpening her screen siren features with makeup, the wife of Ryan Reynolds swept her blonde hair tightly back that evening.

Blake added a splash of glitz to the look with a pair of drop earrings, sliding into a midnight blue pencil skirt that accented her trim waistline.

She balanced expertly on a sky-high pair of jeweled heels and rounded off her chic-to-the-hilt getup with a diamond print gold clutch.

The array of stars who swung by the fete included British singer Lily Allen, who dared to bare as she went bra-less in a see-through white tulle frock.

Her daring ensemble was thrown over a frilly white solid miniskirt, and she jazzed up the look with a tangle of gold necklaces.

Lily, who is married to Stranger Things heartthrob David Harbour, could be spotted strolling beside Queer Eye’s Antoni Porowski, 38, who looked dapper in a white blazer. 

The Hammersmith-born songbird, whose parents are a movie producer and a famous pantomime comic, gathered her hair into a 1960s style updo.