Designer brooch from the 1930s sells to US bidder after being found among costume jewellery.

Police are investigating a "high value" burglary at Plymouth city centre second hand shop.

Not all jewellers are sold on man-made diamonds, which can be grown in a matter of days.

The pair have pleaded guilty to stealing from jewellery stores in Wiltshire and Gloucestershire.

The trial hears the two men on trial for robbery were assisted by two others who remain at large.

Metal detectorist Anthony Woolmington found the mourning ring on a farm near Shillingstone.

Experts say some of the stones in the piece are a match with the original diamonds central to a royal scandal.

Norma Banton's parents worked in the Jewellery Quarter, where she now runs a jewellery shop.