Jake and Freddy smuggle Lady Rah's diamonds into Vancouver, but things don't go as planned. Cam and Isaac butt heads over the direction Green & Green is taking. New evidence comes to light in the Avi Kreshman case.

The Green family comes together for a funeral, which brings long simmering tensions to the surface. A mysterious diamond dealer with ties to Cam's past arrives in LA.

While Cam and Pieter scheme to gain control of Green & Green, Ava takes a bigger role in the family business against Jake's wishes. In the wake of his father's death Freddy takes steps to get clean. Carlos hits a dead end in his investigation.

Freddy and Jake attend an underground diamond auction. Pieter and Cam meet with a Venezuelan diplomat about re-opening an abandoned mine. The U.S. Attorney's investigation into Pieter Van de Bruin causes problems in Ava's new relationship.

Jake and Lady Rah form an uneasy alliance against Pieter. Freddy and Ava work together to gain access to a Russian diamond syndicate. Cam's relationship with Sarah takes a turn for the worst.

With Pieter holding Ava hostage, Jake and Freddy must come together to save her; the investigation into Pieter begins to close in on Green & Green; Cam strikes out on his own, making a deal with the cartel.

On the run from the Cartel, Jake and Freddy are saved by one of the Venezuelan miners and his family - but when the Cartel learns where they are, Jake & Freddy's presence jeopardizes the entire family.

When Freddy and Jake fail to find someone they can trust to cut their rough diamond, Freddy decides to cut the stone himself, and model it after the famed "Anastasia Diamond".