Overview

• Jewellery expert Geoffrey Munn authenticated the necklace’s brilliant diamonds and hand‑worked white‑gold settings during the broadcast.
• Relying on design “handwriting” rather than hallmarks, Munn dated the piece to the 20th century, likely the 1960s.
• The owner, who wore the necklace on her wedding day, said she had questioned its authenticity because it featured so many diamonds.
• Munn set an approximate market value of £25,000 and acknowledged the owner’s view that its personal significance eclipses price.
• The appraisal was filmed at Shuttleworth House in Bedfordshire and the episode is available on BBC One and BBC iPlayer.