RE:RE:volumeIf you mean the world's biggest stone, we already have it - Sewelo.
If you mean a big new discovery you'd have to think about who the hush-hush beneficiary is here:-
Reporter - "Is it true that there is a diamond deposit as big as Jwaneng that was discovered in Botswana?"
Mines Minister - "Yes, there is."
https://www.rough-polished.com/en/exclusive/113067.html