There is no standard for how deep a mine can go when it 'runs out' of diamonds. You can review the material, below, to understand more fully how deep the largest diamond mine drills into the earth.
As well, alluvial diamonds -- diamonds pushed along by the flow of water over the tops of diamond-bearing volcanic pipes -- can be picked up in riverbeds in some places.
You have to mine pretty deep for diamonds (if that's what you're asking)
Diamonds are formed deep within the earth's mantle.
Mostly, natural diamonds come from deep within the earth.
All diamonds come from deep within the earth's core.
Yes, they are.
Diamonds are formed deep within the earth's mantle and are not affected by weather.
All diamonds are erupted to the surface of the earth from deep within the mantle, where diamonds are formed. Diamonds are mined on every continent on earth except Europe and Antarctica.
Diamonds come from deep within the earth, yes, a natural source.
Diamonds are formed deep within the earth's mantle, and are thus considered a natural resource.
In rare cases, diamonds have been found in creeks. The rain water will push them to the surface. Usually the diamonds are mined from deep in the earth.
Yes you must dig very deep.
No, diamonds do not "grow" in mountains. Diamonds are formed deep underground under high pressure and temperature conditions, and are brought to the Earth's surface by volcanic activity through kimberlite pipes. These pipes may be found in mountainous regions, but the diamonds themselves are not formed within the mountains.