At any rate, if one comes to understand how diamonds were found that deep in the land there can be an understanding garnered from that reality.
To the left above is what is called an alluvial flow, also known as the delta. Basically, alluvial flow is the sediment carried by a river to the delta.
Now imagine a world far more hot than it is today and it's forge bringing elements to the surface and then over flowing and running into the ocean. That is what occurs in the ocean bottom of South Africa. An ancient alluvial flow deposited the chemical formula that formed into diamonds. Is it not known that diamonds form under pressure? Well. Here it is. In the coldest waters lies diamonds from the volcanic mantel of Earth.
I have respect for Earth because it's process are immense. It did not form diamonds for the purpose of wealth of people. It HAPPENED to form diamonds out of it's natural processes. Simple chemistry, really.
