Marichalar tiara on Princess Elena of Spain - a family tiara given to Elena as a wedding present by the Count and Countess of Ripalda when she married their son, Jaime de Marichalar. She appears to have retained it, post divorce.
Lady Melissa Percy waves to people on her wedding day near Alnwick Castle. Lady Melissa Percy arrives for her wedding to Mr. Thomas van Straubenzee at St. Michael's Church in Northumberland. Pippa Middleton is good friends with Melissa's brother, George.
Imperial Russian Tiara by Bolin Kokoshnik style in gold, with rubies and diamonds. Originally made for Grand Duchess Sophie, wife of Grand Duke Michael Mikhailovich. Later, known as the Milford Haven Tiara, UK.