Carat

Blue diamond sells for record-breaking £17.5m

The Cullinan Dream has sold at auction for $25.3m (£17.5m), making it the most expensive fancy intense blue diamond to…

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Polished diamond prices dip in May

The price of polished diamonds declined slightly in May as buyers waited for the JCK Las Vegas show, which took…

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‘Aurora Green’ sells for record breaking £11.7m

The 5.03ct ‘Aurora Green’ diamond has gone under the hammer for $16.8m (£11.7m) – a world auction record for a…

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Pink diamond sells for record-breaking £21.8m

The seller of the most expensive polished diamond ever sold at auction has broke another record with the sale of…

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9-carat gold soars 15.8% as overall hallmarking figures fall

The number of 9-carat items hallmarked in April jumped 15.8%, despite an overall decline in hallmarking figures. The latest data…

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Lucara sells rough diamond for record-breaking £43.5m

Diamond production firm Lucara has announced it has achieved the highest price ever achieved for the sale of a rough…

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Largest rough diamond discovered in 100 years could fetch £48m at auction

The largest rough diamond to be discovered in over a century could sell for more than $70m (£48m) at a…

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Petra Diamonds revenue soars 25% in Q3 results

Petra Diamonds has announced its revenue rose 25% to $120.5m (£82.9m) in the third quarter (Q3) of the 2016 financial…

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Diamond and sapphire prices soar for Bonhams

Sapphire and diamond jewellery designs achieved top prices when they went under the the hammer at Bonhams Fine Jewellery sale…

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Shirley Temple’s blue diamond ring fails to sell

The blue diamond ring previously owned by former child-star Shirley Temple has failed to sell at an auction in New…

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