Yes they are Kunz (1885) reported that diamonds were found in the vicinity of Coos Bay Oregon. 2014 was the year Oregonians first discovered diamonds in Oregon’s Aldrich Mountain Greenstone District in eastern Oregon.
Oregon is not known for its raw diamonds.
Diamonds are not found in a great many different places. Diamonds are not found floating in the ocean for example.
Yes, diamonds can be found underground. In fact, most diamonds are mined from the earth.
Diamonds are commonly found in volcanic pipes.
No, no natural diamonds are found in New Zealand.
Diamonds are continuously being found around the world, so there is no specific "last time" that they were found. The mining of diamonds happens on an ongoing basis in various countries where they are naturally occurring.
Diamonds are found below level 16 of the world.
The highest quality diamonds are found in the earth.
The diamonds themselves are, well, diamonds. They're found mixed in with other rock, though.
Diamonds are found in diamond mines that circulate around volcanic pipes: mined diamonds.As well, diamonds are found under water where the water has washed over volcanic pipes that contain diamonds: alluvial diamonds.
Diamonds are found on every continent except Antarctica and Europe - so yes, diamonds are found in India.
The Cullinan and Excelsior Diamonds were found in South Africa.