Kristian Spofforth, head of jewellery at Sotheby’s London, said: “Jewellery owned or worn by the late Princess Diana very rarely comes on to the market, especially a piece such as the Attallah cross, which is so colourful, bold and distinctive.
“To some extent, this unusual pendant is symbolic of the princess’s growing self-assurance in her sartorial and jewellery choices at that particular moment in her life.
“We are confident that this unique 1920s piece of jewellery by Garrard, with such an exceptional provenance and only ever worn by the Princess herself, will attract the attention of a wide variety of bidders, including royal and noble jewellery collectors, as well as fans of the Princess keen to share part of her history.”
As with any of Princess Diana’s jewellery or clothes, the Atallah crucifix pendant is expected to fetch a staggering sum due to its association with the late royal icon.