Question

how much of % of dimond is present in world​

Answer 1

Some 147 million carats of diamonds were estimated to have been produced from mines worldwide in 2018. Major producing countries include Australia, the Democratic Republic of Congo, Botswana, South Africa, and Russia. Worldwide reserves are estimated to be some 1.2 billion carats.

The percentage for diamonds cannot be described because:

Suppose there are 100 diamonds in the whole world, then the percentage will be 100/100 X 100 =100

You can find percentage of diamonds in India or somewhere else.

Answer 2

Explanation:

Most natural diamonds have ages between 1 billion and 3.5 billion years. Most were formed at depths between 150 and 250 kilometres (93 and 155 mi) in the Earth's mantle, although a few have come from as deep as 800 kilometres (500 mi).