Draping celebrities in glamorous jewellery for prestigious red carpet occasions began when Jennifer Jones wore Harry Winston's diamond jewellery to the Academy Awards to collect her Oscar as best actress for the 1943 movie The Song of Bernadette.
Since then, many illustrious international brands have loaned their jewellery to celebrities for the Academy Awards, the Golden Globes and other chic occasions, such as movie premieres and charity events.
Parisian jeweller Van Cleef & Arpels, for example, adorned actresses Julia Roberts and Demi Moore with its jewellery at the Academy Awards and Golden Globes this year.
The stars benefit by being able to accessorise couture gowns with the world's finest jewellery at no cost to themselves. For their part, the jewellery companies stand to reap priceless worldwide publicity.
Celebrities and jewellery firms have had an enduring symbiotic relationship that has grown with time.
'When we work with a celebrity, it is a real partnership. Their personal style inspires us and plays a part in what we see them wearing,' says Sandrine de Laage, vice-president of design at Harry Winston. 'A celebrity who wears Winston becomes part of the history of the brand and a part of the Winston family.'