It looks like a shard of Kryptonite, but it's actually a massive emerald discovered at Kagem, the world's largest emerald mine in Zambia.
The Inkalamu emerald was named in honor of the wildlife conservation group that Gemfields, the mine's co-owner, collaborates with. It was discovered by geologist Debapriya Rakshit and miner Richard Kapeta.
Gorgeous!
(Photo: Gemfields)