This 19th century topaz pendant with cushion-shaped diamond accents sold for £9000 at Mallams’ Silver & Jewellery sale in Oxford on August 23.

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The price was many times its estimate of £1000-1500 – proof that quality coloured gemstones in period settings are highly sought-after in the current market.

Mallams’ jewellery specialist Louise Dennis said this privately entered jewel was a particularly good example of its type.

“It is common for topaz to be set in coloured foiled closed-back settings, but in this case the natural pink hues of the stones were of a good even saturation, requiring no foiling.”