LONDON, UNITED KINGDOM - AUGUST 04:  The Queen Mother Arriving, By Car,  At The Royal Opera House For Her 8oth Birthday Celebration.  She Is Wearing A Full Length Evening Dress In White Chiffon With An Overlay Of Gold Lace.  She Is Wearing The  Diamond And Ruby 'indian'  Tiara And Necklace Made For Queen Victoria Which Were Orginally Set With Opals.  The Rubies Come From A Necklace Presented By Sir Jung Bahadore Of Nepal To The Prince Of Wales During His Tour Of India In 1875.  On Her Shoulder She Is Wearing A Cartier Diamond And Ruby Flower Clip Which Is One Of A Pair.  (Photo by Tim Graham Photo Library via Getty Images)