Until all the deposits are fully mined, there's no way to answer this question.
It is India.
Kerala
The largest diamond mine in area is in Botswana, in Africa: The Orapa diamond mine. Read more about it, below.
The worlds largest thorium deposit is actually found in Turkey, based on present day foundings. Turkey is known to posses an approximate 35% of the world's Thorium reserve.
Plutonium is an artificial chemical element; plutonium has not minerals, ores, deposits.
The world's largest diamond mine is located in Botswana. It is of open pit construction and the area of it makes it the world's largest diamond mine.
Largest mica deposit in the world is in Kodarma district in Jharkhand state in India.
The largest diamond in the world was over 3,000 carats. The diamond was made into 105 smaller ones.
It is India.
Saudi Arabia
THe largest diamond ever found was 3106.75 carats.
There are two records for that: Centenary Diamond - world's largest colorless, flawless diamond and The Golden Jubilee Diamond - World's largest faceted diamond. These two are among the largest polished (finished) diamonds. The Cullinan diamond is the largest rough gem-quality ever found, at 3,106.75 carats.
stuoid
New Mexico
Great Basin Aquifer
Kerala
Africa