St Edward’s Crown 1661 Made from solid 24kt gold and now permanently set with 444 semi precious stones from the personal collection of George V. It weighs more than 2kg and Queen Elizabeth was said to practice wearing it for weeks preceding her coronation to get used to the weight. It is only worn once officially for the act of coronation and never again after that.
Baring Ruby Necklace worn with the Burmese Ruby Tiara by HM Queen Elizabeth II
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Her Majesty can't stifle a laugh
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The Ocean Tiara: Created in 2011 by Van Cleef & Arpels. It was made to represent ocean waves and can be converted into a necklace. Materials: more than 850 diamonds and 359 sapphires in three shades, totaling over 1,200 stones and 70 carats. Provenance: Princess Charlene of Monaco, from Prince Albert II of Monaco on the occasion of their 2011 wedding. Van Cleef & Arpels created unique jewelry for Princess Charlene of Monaco, a gift from her husband, Prince Albert II.
Boucheron Harcourt Tiara. Gold, silver and diamond tiara, the base and top outlined by channel-set diamonds enclosing a continuous line of ribbons, the space between filled with seven emeralds with rectangular cut corners within open oval frames graduated in size towards the back. These are surmounted by groups of collet-set diamonds and supported below by leafy sprays linking the emeralds The emeralds have been replaced. Boucheron, Paris 1900-1913. Go to source for further info.
HM Queen Elizabeth II - putting the diamond into diamond jubilee / Assuming the Queen makes it to February, she will join Queen Victoria as the only British monarch to reach the landmark of a diamond jubilee. Elizabeth II then has another 3 years, 7 months and 3 days to become the longest serving British monarch of all time.