Just weeks after posting a viral video online displaying his vast collection of jewelry, rapper Sean Kingston has reportedly lost a lot of his bling in the mail.

According to TMZ, Kingston -- known for his hit song "Beautiful Girls -- recently lost $500,000 worth of jewelry after attempting to mail several pieces from Los Angeles to New York.

Sources say that the rapper had his sister overnight, via FedEx, his jewelry to his jeweler in New York. However, when the package arrived a day late, the jewelry was missing from the box.

To make matters worse, his sister insured the expensive pieces for just $500, considerably less than what they are worth.

TMZ reports that the L.A. County Sheriff's Department is currently investigating the case.

At press time, calls to Kingston's camp were not returned.