Heatherwick said the design sought to project a world unified by sport.
Petal-shaped heat elements made from hammered copper were created for each country and then carried into the stadium by children during the parade of countries.
The "petals,'' each fitted with an igniter, were then whisked to the cauldron assembly area beneath the stadium floor where they were attached to stainless steel rods in preparation for lighting.
The packed stadium got its first look at the creation with the rods and petals arrayed on the ground in 10 rings, just as the torch arrived in a closely timed relay, starting on The River Thames.
From the time the torch was placed on the first petal, it took 45 seconds for each copper element to ignite, prompting the cauldron to rise from the ground, ultimately drawing each of the petals together at a height of about 28 feet.