The Farnese Blue Diamond sold for $6.7m at auction

The sale also included a 9.7-carat light purplish pink diamond ring which sold for $2.6m

The Farnese Blue, a 6.16-carat pear-shaped dark grey-blue diamond which has passed through the hands of four European royal families, has been sold at auction for $6.7m (£4.9m)

Back to top button