Their beauty has captivated us for millennia. Their cost can be extraordinary–some are even considered priceless. Precious gems like diamonds, rubies, emeralds, opal, and jade are the ultimate treasures of the earth, and each one is made from a specific–and often torturous–recipe of chemistry, pressure, and heat.

Originally released by PBS, 2016. Streaming video file encoded with permission for digital streaming by Infobase on December 04, 2018.

Introduction: Gems (1:42); --Forged Beauty (3:54); -- Nature's Building Blocks (6:28); -- Diamond Industry (4:14); -- Science of Light (2:30); -- Famed Diamond (3:54); -- Collection of Color (4:44); -- Sapphires (5:42); -- Emeralds (2:24); -- Jade (8:12); -- Opal (3:19); -- Gem Stone Geology (4:52); -- Credits: Gems (0:57); .