Categories Diamond This 23.24-Carat Blue Diamond Will Be the Largest Ever Sold at Auction – Robb Report Post author By Gold News Club Post date April 15, 2025 Click here to get this article in PDFEnter your Email AddressShare this: This 23.24-Carat Blue Diamond Will Be the Largest Ever Sold at Auction Robb Report ← Past, Present, Future: The Meaning of Three-Stone Engagement Rings → All That Glitters Isn’t Graded: The New Rules of Diamond Value – observer.com