Perhaps, befitting my age, several carats of rock in an emerald cut.

The diamond has a rectangular emerald cut - meaning it needed no additional facets to enhance its intense pink colour.

It is the largest, highest clarity, highest colour diamond ever graded, and the largest emerald cut diamond in the world.

Donning a bespoke Stella McCartney, Meghan made sure to wear something blue -an emerald cut aquamarine ring on her right hand.