Antiques Roadshow expert Susan Rumfitt floored a guest when she revealed the true value of her diamond brooch.

A remarkably rare sapphire and diamond ring was the headline item of a recent auction in Hong Kong, selling for $USD9.5 million ($AUD14.61 million).

The rare Graff diamond, which a devoted husband purchased for his wife during their marriage, will be auctioned off at Sotheby's later this month.Key TakewaysOne couple's private collection of jewelry ...

A fancy pink diamond with French Imperial provenance, Indian Mughal jewels and a 392.52-carat sapphire are highlights of ...