The Patiala Necklace.
World’s most expensive jewellery.
It was commissioned by Maharaja Bhupinder Singh of Patiala.
In 1888 De Beers Consolidated Mines company was formed. A short while later a huge light yellow octahedral crystal was found in the De Beers mine (picture given below). The gem weighed 428.50 carats (old weight) and measured 47.6 mm x 38.1 mm. It was the largest diamond found at the Kimberly mines during that period. It is the 7th largest diamond in the world.
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