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Now Showing: Visiting an Imperial Treasury in Vienna; What makes pink diamonds pink; and how do oysters make pearls?

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Now Showing: Explore the history of Cartier; Restore a Vintage Rolex Oyster Perpetual Date; and learn everything you need to know about Cubitus

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Now Showing: Restoration of a burnt Rolex Datejust; What's inside the largest diamond mine in the world; and a brief history of powerful gemstone amulets

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Now Showing: Restoring Tony Soprano’s Gold Rolex Day Date; cutting a massive 1000-carat gemstone; and how to make gold signet ring

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Now Showing: Inside Sri Lanka’s deadly underground mines; 100-carat rough opal fresh out of the mine gets cut; and $800,000 worth of gold in five days

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Now Showing: Cutting a huge 700-carat gemstone; Two watchmakers show how to make a perfect watch; and creating diamond and gold handcuffs

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Now Showing: Visiting the world’s largest gemstone and jewellery exhibition; inside Turkey’s illegal replica industry; and how to set up dual-band polishing lap with scoring

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Now Showing: Deep dive inside a watchmaker’s private collection; a walking tour of London’s lapidaries; and a gold mining trip in Papua New Guinea

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Now Showing: Making an 18-carat gold bracelet; 185-year old Victorian ring; and how rare gemstones are found 300-foot-deep mines?