The Imperial State Crown for the State Opening of Parliament - Houses of Parliament in London, England, UK.
Imperial State Crown: weighs 2 pounds 13 ounces and is set with over 3000 precious stones - 2,868 diamonds, 273 pearls, 17 sapphires, 11 emeralds & 5 rubies.
The Imperial State Crown was originally made for Queen Victoria’s coronation in 1838 by Rundell, Bridge & Rundell, the Crown Jewellers.
Image and information source: dailymail.co.uk
Source: glitzandgrandeurtoo