World Record of ‘longest single-strand pearl necklace’ has been achieved by Shimashi Kanko Kyokai from Mie, Japan.

At the 60th Pearl Festa in Kashikojima, Shima, Mie, Japan; pearl necklace measuring the length of 222 meter (728 ft 4 in) with weigh of about 20 kg, comprising of 27,750 pieces of 8 mm pearls was displayed on 22 October 2010.

Previous world Record:

World Record of longest single-strand pearl necklace was achieved by Japanese jewelers from Uwajima, Ehime Prefecture. This necklace measured 187 meters.