What is the probability of a diamond forming?

If possible please include references or accreditation's


To break down the question more the chance of it forming at all?


the chance of it forming from carbon?


and the chance of it becoming mere graphite or a diamond?


thank you for your time :)|||This isn't really a question for probability. At the right temperature and pressures and purity carbon will form diamonds 100% of the time. At any other temperature, pressure and purity it will not, 100% of the time.





If you were trying to ask what percent of carbon on the earth is is diamond form, that it still not a probability question.|||Diamonds are formed from carbon... These are formed at extremely deep levels in the earths crust when high pressure and extreme heat are subject to the carbon. When Volcanic pressure is released these diamond rocks which are thrust up containing diamonds are known as Kimberlite rocks... this is usually, and only accomplished through volcanic activity areas with high carbon deposits... like Africa, and a few areas in South America, as well as India!|||Diamonds form in hot high pressure areas


They are most commonly found in an ultramafic igneous rock called kimberlite, which in turn is formed in deep volcanic vents leading from the mantle into the crust