"The Diamond Princess Saves the Day (Jewel Kingdom #4)" is a paperback book written by Jahnna N. Malcolm and published in 1997. It is part of the Jewel Kingdom series, focusing on the adventures of princesses. The book follows the story of the diamond princess as she saves the day, making it a captivating read for fans of princess-themed tales. With a price of $17.99, this book offers readers an exciting and imaginative journey through its rich storytelling and engaging characters.