Queen Marie-Amélie's Sapphire, Diamond, and Pearl Tiara and Parure, France (1830; made by Bapst; sapphires, pearls, diamonds). More information here: http://orderofsplendor.blogspot.com/2013/07/tiara-thursday-two-french-sapphire.html
The diamond tiara of Queen Amelie of Portugal, nee Orleans. Designed as a classic diamond pinnacle tiara, with fleur de lys spacers, due to her French heritage. She married Carlos, Prince Royal of Portugal on 22 May 1886.