“When a witness lies under oath or conspires to obstruct justice, the integrity of our system of justice is undermined,” U.S. Attorney Wifredo Ferrer said.

Daoud’s attorney, Fred Haddad, said his client, who owns Daoud’s Fine Jewelry, is a “pillar of the community.”

“As far as I’m concerned, he’s done nothing wrong,” Haddad said. “We’re going to trial.”

According to court records, Kimberly Rothstein gave a portion of the missing jewelry to Weisman in November 2009, before IRS agents searched her husband’s home.

They included the 12.08-carat yellow diamond ring, which Rothstein had bought for her from J.R. Dunn Jewelers in Fort Lauderdale.

Weisman showed Kimberly Rothstein’s ring to Marin, and he took a picture of it so he could try to sell it. In April 2010, Weisman gave the ring to Daoud to have it graded by the Gemological Institute of America, and sold it to him for $175,000, according to court records.

Weisman gave the proceeds to Kimberly Rothstein and Saidel.

But the plot thickened when Marin and Daoud gave depositions in the Rothstein law firm’s bankruptcy case.

Marin “falsely testified” that a dead person named Robert Fuchs had shown him the ring, according to records. Daoud also “falsely testified” that someone other than Weisman had shown him the ring and that he never possessed it. In fact, Daoud gave the ring back to Weisman after his testimony, the charges state.

To get their story straight, prosecutors say, Kimberly Rothstein, Weisman and Saidel concocted a plan to persuade Scott Rothstein to testify in the bankruptcy case that he had sold the ring to Robert Fuchs before he was incarcerated.

Weisman and Saidel told Kimberly Rothstein to meet with her husband, who has been held in an undisclosed federal prison, to advise him to deliver “false facts” in the bankruptcy case.

Charles Lichtman, a Fort Lauderdale attorney for the bankruptcy trustee, said he suspects Scott Rothstein told prosecutors about his wife’s alleged obstruction plot rather than go along with it. The reason: Rothstein is hoping to reduce his 50-year prison sentence by continuing to cooperate with authorities.

“My belief is that Scott came clean on his own accord,” Lichtman said. “In the five weeks of depositions I have sat through with him, we have yet to find an instance where he was untruthful.”