Meghan Markle wore a new piece of jewellery during her Nigeria trip but its origins seem to have left royal experts puzzled.

The Duchess of Sussex attended a reception for military families in Abuja where she was pictured wearing a new diamond cross necklace.

According to Page Six, the necklace was a heartfelt gift from Prince Harry to his beloved wife from his mother’s private collection.

Sources who know the couple told the outlet: “Diana remains a prominent force in Harry’s life and as a…