The flawless yellow gem has more than 407 carats.
The necklace is studded with 90 white diamonds weighing nearly 230 carats
L’Incomparable was found in its rough state weighing 890 carats by a poverty-striken African girl as she played in a pile of rubble outside her uncle’s house in the town of Mbuji Mayi in the Democratic Republic of Congo.
Guinness named it the world’s most valuable necklace in 2013
It was created by luxury jeweller Mouawad and is being offered for sale at a Singapore jewellery show.
Only serious potential buyers will get the chance to try it on.
For the L’Incomparable is protected by an army of security guards, plain-clothed supervisors, cameras, and motion detectors.
Yet ‘serious interest’ has been shown by two potential buyers from Asia, Mouawad’s managing director Jean Nasr confirmed.