She is one of the most well-known models in the world. But Petra Nemcova almost had people talking about her for all the wrong reasons as she came close to suffering a huge wardrobe malfunction at the Chopard Bond Street Boutique reopening in London on Monday. The stunning Czech model, 39, threatened to spill out of her silver gown as she put on a very busty display a the star-studded event. Whoops! Petra Nemcova came close to suffering a huge wardrobe malfunction at the Chopard Bond Street Boutique reopening in London on Thursday The star pulled out all the stops as she rocked up in a slinky, perilously plunging metallic wrap dress. However, her decision to go braless proved rather risky as she came close to revealing all as she lent forwards in front of waiting photographers. Petra further flashed the flesh as the dress featured a thigh-high split which allowed her to show off her endless pins. She teamed the shimmering number with towering silver sandals and a matching clutch bag. Busty: The stunning Czech model, 39, threatened to spill out of her silver gown as she put on a very busty display a the star-studded event Star of the show: The star pulled out all the stops as she rocked up in a slinky, perilously plunging metallic wrap dress A cut above the rest: Petra further flashed the flesh as the dress featured a thigh-high split which allowed her to show off her endless pins Adding more bling to her ensemble, the Sports Illustrated model wore a dazzling silver and emerald necklace and matching earrings. Her blonde hair was styled into loose waves, while her glam make-up was applied to perfection. Petra appeared to be having fun on the red carpet as she was seen giggling and larking around with a black bowler hat. She later took time to pose with fellow model Arizona Muse at the glittering event. Be careful! her decision to go braless proved rather risky as she came close to revealing all as she lent forwards in front of waiting photographers Fashionista: She teamed the shimmering number with towering silver sandals and a matching clutch bag Shining: Adding more bling to her ensemble, the Sports Illustrated model wore a dazzling silver and emerald necklace and matching earrings Hey girls: She later took time to pose with fellow model Arizona Muse at the glittering event Arizona turned heads in a striking yellow and silver trouser suit as she posed up a storm with Petra. Other stars in attendance at the swanky soiree included Alexa Chung, who looked a vision in a ruffled, burnt orange gown. The TV personality, 35, oozed radiance on the red carpet, teaming her tiered dress with a dramatic silver necklace from the jewellery brand. Flawless: Other stars in attendance at the swanky soiree included Alexa Chung, who looked a vision in a ruffled, burnt orange gown Orange dream: The TV personality, 35, oozed radiance on the red carpet, teaming her tiered dress with a dramatic silver necklace from the jewellery brand A vision: Alexa accessorised the jewels and earrings with a small black clutch bag and black heels Alexa accessorised the jewels and earrings with a small black clutch bag and black heels. She styled her brunette tresses into an elegant up do', while her classy make-up which consisted of a rusty eye shadow and soft pink lipstick completed the look. Meanwhile, Hollywood actresses Julianne Moore and Marion Cotillard looked lovely in black dresses. Marion, 43, rocked a short, knitted jumper dress, which she teamed with a chunky pair of black, patent boots which had a large, gold buckle on the front. Black magic: Meanwhile, Hollywood actresses Julianne Moore and Marion Cotillard looked lovely in black dresses Style: Marion, 43, rocked a short, knitted jumper dress, which she teamed with a chunky pair of black, patent boots which had a large, gold buckle on the front Gorgeous: While Julianne, 58, looked elegant in a ruched, mid-length number which featured a key-hole detail at the front The Allied actress added a black clutch bag and added a pop of colour with a stunning pair of blue earrings. While Julianne, 58, looked elegant in a ruched, mid-length number which featured a key-hole detail at the front. She paired her dress with black heels and a pair of quirky, jade earrings. Elsewhere, Colin Firth turned up to the event alongside his lovely wife Livia Firth. While Colin looked dapper in a smart, black suit, Livia looked flawless in a sleek, full-skirted gown. She added height to her frame with silver sandals, while she accessorised with a silver clutch bag and emerald earrings. Stylish couple: Elsewhere, Colin Firth turned up to the event alongside his lovely wife Livia Firth Dressed to impress: While Colin looked dapper in a smart, black suit, Livia looked flawless in a sleek, full-skirted gown All rights reserved for this news site dailymail and under his responsibility