The Singapore JewelFest 2013 from Oct 11 to 20, will give the rare opportunity to view the L’Incomparable diamond necklace by Mouawad, awarded as the “Most Valuable Necklace” in the world by the Guinness World Records.

The L’Incomparable is priced at a whopping US$55 million, and features the world’s largest internally flawless diamond, the Incomparable Diamond, which weighs in at more than 407 carats suspended from a rose gold setting that is studded with 90 white diamonds weighing nearly 230 carats.

Singapore JewelFest 2013, which is in its 11th year, will also feature plenty of other glitz from American, European and Asian designers worth over US$250 million, double that of last year's edition.

Security in the city-state is expected to be extremely tight with so much jewellery on display at a pavilion outside an upscale mall.