Diamonds are displayed before being set at a gold jewellery factory for Damas (UAE based jewellery network) in Dubai July 21, 2008. REUTERS/Nikhil Monteiro (UNITED ARAB EMIRATES) 

An employee at a diamond merchant's workshop inspects diamonds while grading them in Mumbai April 30, 2008. Mumbai's diamond traders are moving to a new exchange where they hope to rival Belgium's Antwerp as the world's diamond trading capital. To match feature INDIA-DIAMONDS REUTERS/Arko Datta (INDIA) 

An employee at a diamond merchant's workshop inspects diamonds while grading them in Mumbai April 30, 2008. Mumbai's diamond traders are moving to a new exchange where they hope to rival Belgium's Antwerp as the world's diamond trading capital. To match feature INDIA-DIAMONDS REUTERS/Arko Datta (INDIA) 

A Pear-shaped D-colour flawless 72.22 carat diamond is shown during a press preview at Sotheby's Auction House in New York, March 11, 2008. The diamond worth an estimated $10-13 million will be offered at auction by Sotheby's in Hong Kong on April 8, 2008, during its Magnificent Jewels and Jadeite Sale. REUTERS/Shannon Stapleton (UNITED STATES) 

A ring is seen on the finger of Serena Williams of the U.S. as she gestures in her quarter-finals match against Serbia's Jelena Jankovic at the Australian Open tennis tournament in Melbourne January 22, 2008. REUTERS/Darren Whiteside (AUSTRALIA) 

A Montblanc Lumiere Necklace, with a 11.88 carats Montblanc star diamond hanging from it, is on display along with earrings at the 7th Annual awards season diamond fashion show preview hosted by Diamond Information Center and In Style in Beverly Hills, California January 10, 2008. The necklace is valued at five million dollars and fitted with 3,050 stones for a total of 378.74 carats. REUTERS/Danny Moloshok (UNITED STATES) 

An $18,000 ring and a $42,000 bracelet with Australian argyle chocolate diamonds from Le Vian corp. are displayed during the 7th Annual awards season diamond fashion show preview hosted by Diamond Information Center and In Style in Beverly Hills, California January 10, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

A man works at a construction site in the Paitilla neighbourhood of Panama City December 11, 2007. The shiny skyscrapers that soar above Panama City's coast and loom over the small Central American capital give it a skyline more suited to an Asian powerhouse like Hong Kong or Singapore. While a subprime mortgage crisis batters the United States, construction has been booming in Panama. To match feature PANAMA-SKYSCRAPERS/ Picture taken on December 11, 2007. REUTERS/Alberto Lowe (PANAMA) 

Fireworks illuminate the border bridge between Poland and Germany in Frankfurt on Oder, December 21, 2007. A minute after midnight the European Union's border-free zone is extended to the Czech Republic, Estonia, Hungary, Lithuania, Latvia, Malta, Poland, Slovakia and Slovenia. People from these nations can travel to the existing 15 states of the 'Schengen' border-free zone without having to show their passports. REUTERS/Johannes Eisele (GERMANY) 

A man walks past the new Waterford Crystal ball, to be dropped on New Year's Eve, in Macy's department store in New York November 20, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

A Muslim bride wears ornaments during a mass wedding ceremony in the western Indian city of Ahmedabad November 14, 2007. A total of 21 Muslim couples from various parts of Ahmedabad took wedding vows during a two-day mass marriage ceremony organised by a Muslim voluntary organisation, organisers said. Picture taken November 14, 2007. REUTERS/Amit Dave (INDIA) 

Thiago Pereira of Brazil competes in the men's 200m breaststroke final at the Pan American Games in Rio de Janeiro July 21, 2007. REUTERS/Carlos Barria (BRAZIL) 

A boy holds a sparkler during the Live Earth concert at the soccer arena in Hamburg, northern Germany, July 7, 2007. Former U.S. Vice President Al Gore and his global partners are staging the Live Earth concerts held on seven continents simultaneously to raise awareness of environmental issues. REUTERS/Christian Charisius (GERMANY) 

A guest arrives for a gala screening of U.S. director Michael Moore's film "Sicko" at the 60th Cannes Film Festival May 19, 2007. REUTERS/Eric Gaillard (FRANCE) 

A girl dressed as an angel attends a fancy dress competition in Kolkata May 12, 2007. REUTERS/Parth Sanyal (INDIA) 

Christie's Jewellery specialist Helen Molesworth holds up a coloured diamond pendant during an auction preview in Geneva May 11, 2007. This orange-brown briolette-cut diamond weighing 100.60 carats within a pave-set diamond hook-and-eye clasp will be sold during a sale in Geneva May 17, 2007 and is expected to fetch from $ 1,000,000 - to $1,200,000. REUTERS/Denis Balibouse (SWITZERLAND) 

Christie's Jewellery specialist Helen Molesworth displays an emerald and diamond ring (L) estimated at $ 600,000 - to $ 800,000; a coloured diamond ring (2L) estimated at $ 1,400,000 - to $ 1,650,000; a sapphire ring (2R) estimated at $ 300,000 - to $ 410,000 and a single-stone diamond ring (R) estimated at $ 600,000 - to $ 680,000 during an auction preview in Geneva May 11, 2007. The jewels will be sold during a sale in Geneva May 17, 2007. REUTERS/Denis Balibouse (SWITZERLAND) 

A model presents a creation by Indian designer Manish Arora during India fashion week in New Delhi March 24, 2007. REUTERS/Vijay Mathur (INDIA) 

Bollywood actress Mahima Chaudhary holds a diamond studded cricket ball during a promotional event in Mumbai March 20, 2007. The diamond ball is studded with 5728 pieces of diamonds worth approximately $68,500, organisers said. REUTERS/Prashanth Vishwanathan (INDIA) 

Mrs. World 2007 Diane Tucker of the U.S. reacts as she is crowned by last year's Mrs.World Sofia Arzhakovskaya of Russia during a Mrs.World 2007 contest in Russia's Black Sea resort of Sochi March 8, 2007. REUTERS/Sergei Karpukhin (RUSSIA) 

Singer of the Russian pop band "Aquaerobica" Alexandra Frolova (L) performs as artist Andrey Bartenev dances in front of the stage during Bartenev's exhibition opening at the Moscow Biennale March 7, 2007. The 2nd Biennale in Moscow presents the works of more than 80 artists at five main exhibitions, more than 25 special projects and eight shows by special guests. It will run until April 1. REUTERS/Thomas Peter (RUSSIA) 

The hands and jewellery of actress Gwyneth Paltrow are seen as she arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. Paltrow is wearing a dress designed by Zac Posen. REUTERS/Lucas Jackson (UNITED STATES) 

Presenter and actress Kirsten Dunst and her brother, Christian arrive at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Best actress nominee Penelope Cruz of "Volver" arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Best actress nominee Penelope Cruz of "Volver" arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Actress and presenter Maggie Gyllenhaal arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Mario Anzuoni (UNITED STATES) 

Best Actress nominee Penelope Cruz of the film Volver arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Mario Anzuoni (UNITED STATES - OSCARS) 

Actress and presenter Queen Latifah (L), laughs with actor Sir Peter O'Toole, a best actor nominee for "Venus," lat the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucy Nicholson (UNITED STATES) 

Anne Hathaway's jewellry and handbag are seen on the red carpet at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. Hathaway is wearing a dress designed by Valentino and her jewellery is from Van Cleef & Arpels REUTERS/Lucy Nicholson (UNITED STATES) 

Actress Kirsten Dunst arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. Dunst is wearing a dress from Chanel Haute Couture. REUTERS/Lucas Jackson (UNITED STATES) 

Spanish actress Penelope Cruz, nominated for an Oscar for best actress for her role in 'Volver,' arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Actress Anika Noni Rose, from the movie 'Dreamgirls,' arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Spanish actress Penelope Cruz, best actress nominee for 'Volver,' arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. Cruz is wearing a dress designed by Versace and her jewellery is from Chopard. REUTERS/Lucy Nicholson (UNITED STATES) 

Presenter and actress Kirsten Dunst waves as she arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Mario Anzuoni (UNITED STATES) 

Presenter and actress Kirsten Dunst and her brother, Christian arrive at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Mario Anzuoni (UNITED STATES) 

Presenter and actress Kirsten Dunst arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Mario Anzuoni (UNITED STATES) 

Actress Kirsten Dunst arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. Dunst will be a presenter at the awards. REUTERS/Lucas Jackson (UNITED STATES) 

Eddie Murphy, best supporting actor nominee for "Dreamgirls", and Tracey Edmonds arrive at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Actress Kirsten Dunst arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Presenter and actress Queen Latifah arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. Queen Latifah is wearing a dress designed by Carmen Marc Valvo and jewelry by Chopard. REUTERS/Lucy Nicholson (UNITED STATES) 

"Dreamgirls" actress Anika Noni Rose arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

"Dreamgirls" actress Anika Noni Rose arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Actress and singer Jennifer Lopez arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Lucy Nicholson (UNITED STATES) 

Actress and singer Jennifer Lopez arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. Lopez is wearing a dress designed by Marchesa and jewelry by Lorraine Schwartz. REUTERS/Lucy Nicholson (UNITED STATES) 

Actress Rachel Weisz arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Mario Anzuoni (UNITED STATES) 

Australia's Cate Blanchett, best supporting actress nominee for her role in 'Notes on a Scandal,' arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Actress Anne Hathaway arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. Hathaway is wearing a dress designed by Valentino and her jewellery is from Van Cleef & Arpels. REUTERS/Lucas Jackson (UNITED STATES) 

Best Supporting Actress nominee Cate Blanchett of "Notes on a Scandal" arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Actress Anika Noni Rose of "Dreamgirls" arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. Rose is wearing an outfit designed by Naeem Khan and jewelry by Chopard. REUTERS/Mario Anzuoni (UNITED STATES) 

Actress Anika Noni Rose of "Dreamgirls" arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Mario Anzuoni (UNITED STATES) 

Actress Jennifer Lopez arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Jennifer Lopez laughs as her husband Marc Anthony takes a picture as they arrive at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Actress Rachel Weisz in Vera Wang with vintage Cartier jewelry arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. Weisz will be a presenter at the awards. Weisz is wearing a dress designed by Vera Wang and vintage jewelry by Cartier. REUTERS/Lucas Jackson (UNITED STATES) 

Actress Rachel Weisz, wearing a Vera Wang gown with vintage Cartier jewelry, arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Lucy Nicholson (UNITED STATES) 

Actress and singer Jennifer Lopez arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Lucy Nicholson (UNITED STATES) 

Best actress nominee Penelope Cruz of "Volver" arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Singers Marc Anthony (L) and Jennifer Lopez arrive at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. REUTERS/Lucy Nicholson (UNITED STATES) 

Actress Cameron Diaz arrives at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. Diaz is wearing a dress designed by Valentino. REUTERS/Lucas Jackson (UNITED STATES) 

Jennifer Lopez laughs as her husband Marc Anthony takes a picture as they arrive at the 79th Annual Academy Awards in Hollywood, California February 25, 2007. REUTERS/Lucas Jackson (UNITED STATES)