Gabriela Farfan, the Smithsonian's curator of gems and minerals, answers the internet's burning questions about gemstones. Are all minerals crystals? How are diamonds cut? How do geodes form? Is the Hope Diamond actually cursed? This rock and mineral expert answers all these questions and more.br br Director: Lisandro Perez-Reybr Director of Photography: Ben Finkelbr Editor: Richard Trammell br Expert: Gabriela Farfanbr Line Producer: Joseph Buscemibr Associate Producer: Brandon White br Production Manager: D.