Diamonds have also ground away the other pebbles on a beach in Namibia. DeBeers won't let anyone but archaeologists near it.

Diamonds are produced in many places, not at the MIT. But the oil industry "consume" diamonds by using them on the drill-heads going into the rocks. But this kind of use in not explored in the US, you have to come to Europe for that. Diamonds have been produced for years, so the amount is not finite and never was believed to be finite.

The earth weighs 6.4 quadrillion tons. This discover means that diamonds could comprise almost 15 percent of the planet's mass.

This is very bad news for the DeBeers monopolists who continue to use slave labor to mine diamonds, and will as per usual do their best to suppress this news and deflect from what it actually means.
The illusion that sparkly rocks are desirable and "precious" must be maintained.

There goes the price of diamonds.

This is old news. We've known that diamonds are swimming around in the core of the planet, just looking for a way out. What the article doesn't say is that the heat of the extrusion cooks most diamonds - the extrusion must be dramatic and rapid so that the heat is expelled rapidly, and there hasn't been such an extrusion in thirty million years. There are numerous diamond sources around the planet, but the cost of extraction is, generally, uneconomic. It takes a kimberlite which is high grade to provide the economic return, and this reduces sources of gem grade diamonds to a few dozen. In the USA there are diamondiferous kimberlites in Kentucky and Colorado, but are of low grade and concentration and are uneconomic.

Ha, but we already knew this from the movie The Core. Science following up on science fiction, again!

Knut, you are mistaken in two respects. First, in your statement that diamond drills are not in use in the US. They are, in fact, quite commonly used in all sorts of drilling/boring operations. Second, in your use of the word "finite". You seem to think that it means "limitless", but that is the exact opposite of what it means. Finite = limited, bounded. Infinite = UNlimited, boundless.

This quote: "We can't get at them, but still, there is much more diamond there than we have ever thought before." Pretty much sums it all up.
Firstly anyone who thinks that buying diamonds in one of millions of jewelry stores is investing in something worthy--I got some swamp land in Florida I would like to see you.
The diamonds that are set in jewelry in retail stores are about as priceless and the thick green-glass bottom of a Coca Cola bottle. Diamonds are absolutely worth ZERO dollars. The only ones that are priceless, or worth anything are ones that only someone with a 7 figure balance in their bank can afford.
Gold on the other hand is valuable and can be easily traded in the event of an emergency. All the gold ever discovered, mined and so on would only fill an Olympic sized swimming pool. That means any and all gold from recorded history.

Buyng diamonds have always been a scam (and as engagements, DeBeers sold the story but it's really ony in the past 90 years with the ad campaigns starting in the 20s ... just as until the oast 10 years, hardly anyone in China bought diamonds as engagement/wedding rings - gold/latnium is rare - diamonds are just polished rocks - and as noted, can be manufacturered from a charcoal briquet under pressure.