The Blue Regina

Between 1939 and 1945, Nazi forces inside occupied countries confiscated an untold amount of treasure, including a flawless, 47.05 caret blue diamond known as the Blue Regina. Later, it was mistakenly sent to the United States, and arrived just prior to the start of World War II. Throughout the duration of the war and after, its whereabouts remained unknown.

In 1951, a well-funded U.S. bound expedition is formed by a noted Berlin gemologist. Unfortunately, news of his expedition motivates ot...