A mystery man sold a handful of illicit diamonds connected to Scott Rothstein’s $1.2 billion Ponzi scheme, including a near flawless 8.91-carat stone, according to court documents.

The diamond trail is spelled out in documents filed by SPD Group Inc., the owner of J.D. Dunn Jewelers in Fort Lauderdale, which is being sued by the bankruptcy trustee for Rothstein’s defunct law firm to recover jewelry that federal agents never found when Rothstein’s fraud fell apart.