R&B singer Sean Kingston has been sued by jewellers for allegedly failing to pay for pricey accessories.

Bosses at New York City-based company Aqua Master have hit the Beautiful Girls star with a lawsuit claiming Kingston picked out nine pieces of their high-end jewelry last month (Jul16), costing more than $300,000 .

The jeweller alleges Kingston's business manager promised to wire money for the outstanding bill, but instead, he received two cheques - both of which bounced.

In the suit obtained by TMZ.com, the plaintiff points out that Kingston even flaunted the two diamond necklaces, gold chains, a ring, bracelet, and two watches on his Instagram account.

This isn't the first time Kingston has been sued for unpaid bling - in March (16), owners of Haimov Jewelers in Florida, filed a similar suit, claiming the star traded in a used Rolex watch in exchange for a new one, and had signed a receipt promising to pay off the difference the following day.

However, he allegedly still owed the store the $25,000 balance for the watch, plus the cost of a diamond bracelet, which he also promised payment for.

In 2015, he was ordered to pay $356,000 to New York-based Avid 'Da Jeweler' Davidov for failing to pay for watches, chains, a ring and bracelets between 2008 and 2013, and then attempting to cover the debt with cheques that bounced.