"The Eustace Diamonds" is a novel by Anthony Trollope, first published in 1871. It is the third book in his "Palliser" series. The story revolves around the contentious ownership of a valuable diamond necklace, the Eustace Diamonds, which belong to the beautiful and cunning Lady Eustace. The narrative follows the necklace's journey through various hands and the legal and moral controversies it engenders. Lady Eustace's attempts to hold onto the diamonds amidst accusations of theft and deceit form the central plotline, revealing the complexities of Victorian society's obsession with wealth and status. Trollope skillfully weaves together themes of greed, deception, and the consequences of moral compromise in this compelling tale of intrigue and social commentary. "The Eustace Diamonds" stands as a quintessential example of Trollope's satirical wit and keen insight into human nature and societal norms.