Daena Borrowman, Marketing Manager at jewellerybox, told Express.co.uk: “The art deco style Queen Mary Diamond Bandeau Tiara consists of diamonds and platinum fashioned into 11 sections interlaced with ovals and pave diamonds.

“The tiara is crested by an eye-catching, detachable, ten diamond-studded flower-shaped brooch from 1893, given to the then Princess Mary at the time of her wedding to Prince George.

“The actual tiara itself was created in 1932 with the express purpose of accommodating the special brooch.

“It had its most iconic moment in 2018 when Meghan, the Duchess of Sussex wore it on her wedding day.”