Maxwell Stone, creative director of luxury retailer Steven Stone, said: “It’s no secret that Meghan has an eye for jewellery and over the years, Harry has presented her with a wealth of pieces – including some from Princess Diana’s collection.

“Reportedly a recent gift from Harry that hails from his late Mother’s collection, her latest piece has sparked particular interest due to its unfamiliarity.”

The pendant features a central round cut diamond, surrounded by four baguette…