Supermodel Miranda Kerr's jewelry box could soon be a little lighter. Last week, the U.S. Department of Justice filed a civil lawsuit to seize more than $9 million worth of jewels from the mom-of-one.

Kerr received the jewelry from her ex

Shortly after Kerr's 2013 divorce from Orlando Bloom, she became involved with Malaysian billionaire, Jho Low. According to the lawsuit, the financier showered Kerr with multiple diamond pieces from February to November 2014. Some of the Lorraine Schwartz jewels in Low's offerings included an 11.72-carat ring, valued at $1.29 million, as well as a $4.5 million, 8.8-carat diamond pendant.

Even though the relationship ended after a year, Low allowed Kerr to keep the baubles, as some of the items had custom inscriptions to the model.

Low is now accused of being one of the main players in $4.5 billion scam

After the couple split, Low came under investigation as part of the 1Malayasia Development Berhad Scandal (1MDB). Malaysia's Prime Minister, Najib Tun Razak, has been accused of bilking one of the country's development funds out of more than $700 million. Since the investigation began, other countries, including the United States, Switzerland, and Hong Kong, have launched their own investigations into Razak, Razak's stepson Riza Aziz, and Aziz's close friend Jho Low.

In the United States, the FBI began investigating Low and Aziz for money laundering. Allegedly, the duo used portions of the stolen funds, as well as bank loans secured in other countries, to purchase high-end properties throughout the world, artwork, a private jet, a yacht, and jewelry.

Leonardo DiCaprio gets snagged in investigation

Aziz is also accused of using the ill-gotten gains to finance his production company, Red Granite Pictures. The company produced Daddy's Home, Dumb and Dumber To, and Friends with Kids, as well as the Leonardo DiCaprio flick The Wolf of Wall Street.

Late last year, a rainforest charity called upon DiCaprio to sever ties with Low, Aziz, and others associated with the 1Mdb Scandal and return any gifts or funds that he received from the group, or step down as a U.N.

Messenger of Peace. Earlier this week, the Oscar winner voluntarily surrendered some of the gifts that he received from the group, including a Picasso painting and Marlon Brando's 1954 best actor Oscar.

Kerr is cooperating with investigators

As for Kerr, who married Snapchat CEO Evan Spiegel earlier this year, she is reportedly still in possession of the jewels. While the government has not yet asked for her to turn the diamonds over, she has been cooperating with the investigation.