Buyers may have been discerning, but more than $1.1 billion (£800 million) worth of extreme top-end diamonds, coloured gems and jewellery were sold at auction in 2017.
Read MoreA market report from the September Hong Kong show, including the Argyle tender, synthetic diamonds and coloured gemstones.
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The spring 2016 auction season was one for the record books, achieving nearly $800 million (£555 million) in sales between March and July and featuring the costliest gemstone ever to be sold at a public sale.
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The diamond industry was slow to recover in 2016 and coloured gems got a welcome shot in the arm. Mixed signals leave no clear indicators for 2017.
Read MoreFind out why the number of very large diamonds entering the market has increased sharply in the last few years.
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