“Emerald cut diamonds have fewer facets so they’re don’t have the sparkle of other cuts, but that also means that they need to be the best quality,” jewellery expert Michael O’Connor told Us Magazine of the centre stone, which is approximately six carats.

“The light returned from a diamond like this is pure and white. Since Brad and Angelina always choose elements that are deeply symbolic and emotional, it’s no doubt that Brad chose a platinum setting to symbolise a love that will never fade, since this ring will become a piece of heirloom jewelry."

“I would estimate this ring to cost $250,000,” he added.