RAPAPORT... The US Department of Justice (DOJ) is suing diamond andjewelry heir Moshe Lax, Ivanka Trump's friend and former business partner, fortax fraud.Lax (pictured) and several of his family members sought to hide earnings from his latefather's trust in a series of "sham transactions" and "fraudulent transfers"designed to evade tax liability, the suit alleges.Members of the Lax family owe $61.6 million to the InternalRevenue Service (IRS), including income tax on revenue from variousdiamond businesses, according to court documents. Those businesses include Dynamic Diamond Corp., Favorite Diamond andMadison Avenue Diamond Holdings, the company Lax operated with IvankaTrump under the brand name Ivanka Trump Fine Jewelry. Lax and his sister, ZlatySchwartz, co-executors of their father's estate, fashioned as many as 10schemes, according to legal documents, in order to hide the family's assets from creditors, including the government.These schemes included creating holding companies to which funds weretransferred, and changing the name of one of their diamond companies withoutapplying for a tax identification number for the new company.The DOJ made the allegations in documents filed in a New York district court last month.Lax has a long history of working with Ivanka Trump. He operated a licensing deal enabling him to use her name in association with jewelry, and helped her open a retail location in Manhattan's Upper East Side in 2007, according to the New York Times.The two remained partners for some time: Until 2017, Lax's LinkedIn profile listed him as the chairmanof Ivanka Trump Fine Jewelry, according to Politico. While the lawsuit mentions Madison Avenue Diamond Holdings, the business Lax operated in partnership with Trump, it does not name her as a partyto any wrongdoing.Attempts to reach Laxfor comment, as well as the lawyer representing Schwartz, were unsuccessful.