Now Showing: Revealing the stunning Winston Red Diamond; Exploring the Tucson Gem, Mineral & Fossil Show; The fight for the emerald industry in Colombia

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Now Showing: Meet the orphan boy who created Rolex; Understanding the science of fancy colour diamonds; How does a diamond heist actually work?

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Now Showing: Descending into the underground opal mining town; Up close with the world’s largest pearl; How do counterfeit Rolexes actually work?

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Now Showing: DiCaprio & Rolex: Why this superficial news may be significant; Fabergé Masterpieces: The Exquisite Art of Imperial Eggs; ‘Sustainable’ Olympic medals deteriorating?

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Now Showing: Unearthing rare and dazzling opal; What gold’s crazy run says about China; Restoring a vintage Cartier watch

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Now Showing: Why are diamonds getting cheaper?; Rolex shuts down Bucherer; Hunting for rough in Tucson

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Now Showing: Fighting the dulling demand for diamonds; The watch collection of a professional pilot; Inside Colombia’s emerald gemstone trade

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Now Showing: Who Will Succeed Bernard Arnault at LVMH?; The Windsors’ forgotten jewellery collection; De Beers and the Future of Diamonds

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Now Showing: Dazzling interest in Australian sapphires; Archaeologists make ‘once-in-a-century’ discovery at Pompeii; Questions for the diamond industry as 2025 begins

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Now Showing: Restoring a Grand Seiko; Unearthing stunning white opal; Meeting the Buccellati family

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Now Showing: Explore the history of Michael Hill; Watch shopping with comedian Tom Segura; A closer look at watches worn by NBA stars