The mirny diamond mine in russia is the world’s biggest hole - it’s 525 metres deep and 1.25km wide.The suction above the hole resulted in several helicopter crashes, so all flight above the hole is prohibited now.
Crater of Diamonds State Park, Murfreesboro, Arkansas (Pike County) is the only diamond mine in the world where visitors can dig for diamonds & keep what they find. An average of 2 diamonds a day are found, along with 40 other gemstones & minerals including amethyst, jasper, peridot, garnet, & quartz. The Strawn diamond (bottom) found in 1990 weighed 3.09 carats, 1.09 carats when cut - it's rated a perfect 0/0/0 & considered a one-in-a-billion stone. Valued at $34k, it's on display at the…
Kimberly Diamond Mine is where Cecil Rhodes, the man after which Rhodesia was named (later to become Zimbabwe) made his fortune. It is the biggest hand dug hole in the world, it’s depth being over 1,000 metres.The mine has given up over 3 tonnes of diamonds and finally closed in 1914.
Crater of Diamonds State Park in Arkansas This is what you need to get started on your hunt for diamonds, plus a lot of patience, sunscreen, and a good imagination - all my rocks looked like diamonds - but turned out to be just rocks!
Unique and Unusual Hotels in Arkansas: Diamond John's Riverside Retreat Teepees * If you're visiting Murfreesboro for the diamond mine, you might consider staying in a teepee. Diamond John's has four teepees along the Little Missouri river. The teepees accommodate up to four people and actually have queen-sized beds. Diamond John's also has cabins, but you can stay in a cabin any day. How often are you going to get to stay in a teepee?
The abandoned Mir Mine diamond pit and the town of Mirny, Sakha Republits, Eastern Siberia, Russia. Mirny Diamond Mine (Siberia). It's an absolute beast and holds the title of largest open diamond mine in the world. The mine is 525 meters (1,722 ft) deep and has a diameter of 1,200 m (3,900 ft),  and is the second largest excavated hole in the world, after Bingham Canyon Mine.