Now Showing: Can you grow an opal?; top 10 most impressive diamonds discovered; and the world of Swiss watchmaking

Take a few moments to enjoy Jeweller's video selection including updates on current affairs and insights into our jewellery trade. This week, find out if you can grow an opal, take a closer look inside the fascinating world of Swiss watchmaking, and find out which diamonds make the top 10 most impressive ever found.
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