Tamara Ecclestone looks sensational as she showcases her hourglass figure in a navy blue dress and velvet coat for her fashion charity auction By Olivia Wheeler For Mailonline Published: 13:15 GMT, 1 March 2019 | Updated: 13:15 GMT, 1 March 2019 Viewcomments She's spent years raising money to help children with life-threatening and life-limiting diseases. And Tamara Ecclestone looked effortlessly chic as she headed to her fashion charity auction to raise money for Great Ormond Street Hospital Children's Charity on Friday. The Formula One heiress, 34, is auctioning off her own and her four-year-old daughter Sophia's clothes with 100% of proceeds going to the charity. Gorgeous: Tamara Ecclestone looked effortlessly chic as she headed to her fashion charity auction to raise money for Great Ormond Street Hospital Children's Charity on Friday Tamara looked sensational for the event, showing off her flare for fashion and showcasing her enviable hourglass figure in a navy blue ribbed dress. Layering her ensemble, the star added a stylish matching coloured velvet trench coat. Completing her look, Tamara wore a pair of diamond earrings, a blue and gold patterned clutch bag and a pair of navy heels. Giving back: The Formula One heiress, 34, is auctioning off her own and her four-year-old daughter Sophia's clothes with 100% of proceeds going to the charity Stylish: Tamara looked sensational for the event, showing off her flare for fashion and showcasing her enviable hourglass figure in a navy blue ribbed dress The mother-of-one styled her luscious brunette locks into a glossy and bouncy blow-dried curly hairdo, she added a slick of glamorous make-up. Tamara's auction will see her sell of her own and her four-year-old daughter Sophia's clothes to the highest bidder with 100% of proceeds going to Great Ormond Street Hospital Children's Charity. The star has even set up an Instagram account, called TamaraGivesBackOfficial, where the items will be advertised and some being sold on eBay. Finishing touches: Layering her ensemble, the star added a stylish matching coloured velvet trench coat Wow-factor: Completing her look, Tamara wore a pair of diamond earrings, a blue and gold patterned clutch bag and a pair of navy heels Tamara, the daughter of billionaire Formula 1 owner Bernie Ecclestone, first opened her eBay shop in 2008. The mother-of-one, who raises her daughter Sophia with husband Jay Rutland, 37, said in 2016: 'They are pieces that I love and am so excited that other people will be able to enjoy, most importantly I am so pleased to be able to make an ongoing difference for Great Ormond Street Hospital. 'I have been a supporter of Great Ormond Street Hospital Children's Charity for the past 12 years and it is a cause very close to my heart. Glamorous: The mother-of-one styled her luscious brunette locks into a glossy and bouncy blow-dried curly hairdo, she added a slick of glamorous make-up Sweet: Tamara's auction will see her sell of her own and her four-year-old daughter Sophia's clothes to the highest bidder with 100% of proceeds going to Great Ormond Street Hospital Children's Charity 'Great Ormond Street Hospital is a very special place that touches the lives of thousands of children and their families every year. 'Every time I visit the hospital I am in awe of the work that the staff do and the resilience of the young patients I meet.' In the past, Tamara has raised up to an whooping £897K for the charity. Charity: Tamara, the daughter of billionaire Formula 1 owner Bernie Ecclestone, first opened her eBay shop in 2008 - she raises her daughter Sophia (pictured), four, with husband Jay Rutland, 37 Share or comment on this article: All rights reserved for this news site dailymail and under his responsibility