Kate Middleton debuted a small switch-up to her ring stack at the Duchess of Kent's funeral Mark Cuthbert/Getty ImagesThe Princess of Wales showcased a new ring stack as she attended the Duchess of Kent's funeral on Tuesday 16th September. Kate teamed her famous, sapphire-and-diamond engagement ring with four other thin bands, wearing all five on one finger for the first time to create an on-trend stack. Many have speculated that the ring may have been a present from Prince William to mark the end of Kate's course of preventative chemotherapy – and of course, it co-ordinates perfectly with her engagement ring. The fourth and final band adorning the Princess' finger was, of course, her wedding ring, crafted from the same nugget of Welsh gold used for Queen Elizabeth's own wedding band. The Princess also accessorised with the Japanese Pearl choker necklace and a pair of diamond-and-pearl earrings, both inherited from the late Queen Elizabeth.