Kate Middleton didn't wear her engagement ring that once belonged to Princess Diana at the Royal Marsden Hospital in London on Jan. 14. Inside why and more about Princess Kate's new ring.

Princess Kate, the Princess of Wales, recently visited the Royal Marsden Hospital in London to thank the staff who supported her during her cancer treatment. During her visit, she revealed she is now in remission and expressed heartfelt gratitude for the exceptional care she received.

Catherine, Princess of Wales revealed on Tuesday that she is in remission from cancer, following a visit to the London hospital where she was treated last year.