Mexico is the largest producer of silver with a silver mining tradition that dates back hundreds of years. Veteran mineral dealer Thomas Nagin visits several colonial towns built from the riches of the mines, and explores the ancient craft of silversmithing. Along the way, he finds a great lot of crystallized minerals but his biggest prize is the opportunity to journey deep inside the world's largest primary silver mine.

One of the most abundant minerals on Earth, quartz is anything but ordinary and some of the most extraordinary quartz comes from Arkansas. Veteran mineral dealer Thomas Nagin explores its metaphysical side and a long-closed local curiosity, The Crystal Cave. We meet a cast of characters at the World Championship Quartz Crystal Dig and watch as a newly discovered pocket of quartz is extracted at the renowned Coleman Mine.

Traveling the Estrada Real, or "Royal Road," veteran mineral dealer Thomas Nagin explores Brazil's rich diamond and gold history, and discovers some new treasures along the way. We see odd underground formations, stunning examples of Imperial topaz, and we make some new friends. The "Laser Cowboys" show us how they mine laser quartz crystals and one of Brazil's top mineral collectors invites us to view his private collection.

Famed for its gemstones, Brazil is one of the most mineral-rich countries on Earth. In Minas Gerais – the country’s most mineral-rich state – we see how the gems are cut, polished, and prepared for market. To see them in their natural, but equally beautiful form, veteran mineral dealer Thomas Nagin visits the renowned Pederneira tourmaline mine, and an aquamarine mine where he explores a newly found gem pocket as it's being uncovered.

Each day, millions of dollars worth of emeralds are traded on the streets of Bogotá, Colombia’s thriving capital city. But few venture to the source of these gems, located deep in the Andes Mountains. Veteran mineral dealer Thomas Nagin leads viewers over treacherous mountain roads to explore two of the country’s most famous mines. Then it’s back to the big city to hunt for emeralds in the world’s largest emerald district.

A journey into the jungles of Bolivia takes us deep underground to explore the world’s largest gem pocket! Join veteran mineral dealer Thomas Nagin as he travels by boat through the Pantanal wetlands to reach the Anahi Mine, renowned for its production of amethyst and ametrine. See how the minerals are mined, watch their transformation from gem rough to gemstones, and experience, first-hand, a world of natural wonder.