The Hope Spinel on sale by auction house Bonhams for the first time in 98 years.

A rare British-owned gemstone steeped in history and intrigue is expected to sell for in region of £150,000 to £200,000 after being offered for sale for the first time in 98 years.

The Hope Spinel was part of one of the world’s greatest gem collections until its owner – London banker Henry Philip Hope – died in 1839.

It has not been offered for sale since 1917 when it went for £1,060 – a staggering figure at the time.

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