Brazilian supermodel Gisele Bundchen is using her creativity to raise cash for charity by designing an exclusive platinum-and-diamond necklace.

The 23-year-old catwalk favourite, girlfriend of actor LEONARDO DiCAPRIO, designed the heart-shaped accessory before handing it over to jewellers GUMICHAIAN FILS for crafting.

The necklace - which is priced at $1,000 (GBP625) - is being sold to raise money for ST JUDE CHILDREN'S RESEARCH HOSPITAL, which specialises in cancer treatment.

Gisele says, "My family is the most important thing in the world to me, and I also believe that there is no love bigger than a mom's love. The big platinum heart represents my mom, and the six little bezel-set diamonds represent me and my five sisters.

"I chose St Jude's because I love children - kids have the purest hearts - and I lost my two grandmothers to cancer."

Fans hoping to get their hands on the delicate jewellery item are being urged to act fast - only 50 have been made.

11/11/2003 21:03