A rare diamond with a diamond inside has been discovered in India.

It was named "Beating Heart" - in honor of the emotions after discovery. Now the stone is among the rare diamonds along with the Yakut "Matryoshka" - the first such find. The diamond weighs 0.329 carats. The inner stone moves freely in the cavity of the larger one. British laboratory staff who examined the find said they had never seen anything like it.