படிமம்:Hall Sapphire Necklace 01.jpgDescriptionHall Sapphire Necklace 01.jpg Hall Sapphire and Diamond Necklace at the National Museum of Natural History in Washington, D.C. Date 28 February
படிமம்:Bismarck Necklace (crop).jpgwork of the following images: File:National_Museum_of_Natural_History_Sapphires.JPG licensed with PD-self 2008-12-18T19:16:44Z Jorfer 2361x1392 (1144499