By Royal Appointment to Her Majesty the Queen and HRH the Prince of Wales, Bentley & Skinner has specialised in the finest jewellery since 1880. This Edwardian diamond tiara, dated around 1900, features foliate swags and floral motifs. Set with old brilliant-cut and rose-cut diamonds, estimated to weigh a total of eight carats, to a yellow gold mount, its detachable frame can be converted into a coronet.

£59,500 / €68,265 / $77,500
www.bentley-skinner.co.uk