What states have diamond mines?

The primary U.S. state with active diamond mining, including the famous Crater of Diamonds State Park, is Arkansas, the only place where the public can dig for diamonds and keep them. Diamonds have also been found in other states like Colorado, Wyoming, Montana, North Carolina, and Georgia, with some historical commercial mining in Colorado and past discoveries in other areas, but Arkansas is the main hub for public diamond hunting.

How many diamond mines are there in the US?

The U.S. has only one active, public diamond mine: Crater of Diamonds State Park in Arkansas, where visitors can search for and keep any diamonds they find. While there were other commercial mines in the past, like Kelsey Lake in Colorado, they are now closed, making Arkansas's park the sole operational spot for diamond digging in the country.
 

What state has the most diamond mines?

Arkansas Hosts the Planet's Only Public Diamond Mine. Visitors have unearthed more than 35,000 diamonds at Crater of Diamonds State Park since 1972.

What US state has diamond mines?

The answer might surprise you. Arkansas's Crater of Diamonds State Park is one of the only diamond-producing sites in the world where the public can search for diamonds in their original volcanic source.

Why does Arkansas have so many diamonds?

Diamonds are in Arkansas because a rare, deep-earth volcanic eruption about 100 million years ago brought diamond-bearing rocks (lamproite) from the Earth's mantle to the surface, creating the unique Crater of Diamonds State Park, the only place in the world where the public can search for diamonds in their original source. The diamonds themselves formed much earlier, over 3 billion years ago, under immense heat and pressure deep within the Earth. 

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Can you keep diamonds you find at Crater of Diamonds State Park?

Yes, Crater of Diamonds State Park has a strict "finders, keepers" policy, meaning any diamonds or other gems you find are yours to keep, making it the world's only public diamond mine where you can take your finds home. Visitors search a 37.5-acre plowed field, the eroded surface of a volcanic crater, and get to keep any diamonds, quartz, amethyst, or other minerals they unearth, with free identification and certification available at the park.
 

How many diamonds have been found at Crater of Diamonds in 2025?

So far, 403 diamonds have been found at Crater of Diamonds State Park in 2025 – four of which have weighed over two carats.

Who owns 90% of diamonds?

When Rhodes died in 1902, De Beers controlled 90% of the world's diamond production. Ernest Oppenheimer took over the chairmanship of the company in 1929, after buying shares and being appointed to the board in 1926.

What is the rarest color of diamond?

The rarest color of diamond is red, with only a handful of natural red diamonds known to exist worldwide, making them incredibly valuable collector's items. Their unique color comes from distortions in their atomic structure, rather than chemical impurities, and most discovered red diamonds are less than a carat. Other exceptionally rare colors include green, purple, and intense orange diamonds, but true red is considered the pinnacle of rarity, according to organizations like the GIA.
 

What are the odds of finding a diamond in Arkansas?

What Are the Odds of Finding a Diamond? According to park staff, one or two diamonds are found daily, so while it's entirely possible to strike it lucky, it's best to keep your expectations in check.

Are Costco diamonds lab grown or natural?

Costco primarily sells natural, untreated diamonds, adhering to strict GIA-based standards for quality (VS2 clarity, I color or better) and offering detailed reports, but they do also offer some items featuring lab-created diamonds, particularly in specific jewelry pieces like certain rings, so always check the product description for "natural" or "lab-created". 

How much do diamond miners get paid?

While ZipRecruiter is seeing annual salaries as high as $71,000 and as low as $36,000, the majority of Diamond Mining salaries currently range between $48,500 (25th percentile) to $62,000 (75th percentile) with top earners (90th percentile) making $68,500 annually across the United States.

Where can you find raw diamonds in the United States?

You can find natural diamonds in the U.S. primarily at Crater of Diamonds State Park in Arkansas, the only place in the world where the public can search and keep their finds, but also in historic gold fields like the Sierra Nevada foothills (California) and ** Appalachian regions (NC, GA)**, or from glacial deposits in the Great Lakes area, though commercial mining is limited. 

How much does it cost to go to Herkimer Diamond mine?

At Herkimer Diamond Mines in central New York, home to an especially clear and unusually hard type of quartz crystal known as the Herkimer diamond, a $14 admission price includes a day of prospecting and the rental of a rock hammer. (Children under 4 mine for free.)

Are diamonds found in Arkansas worth anything?

Diamonds found at Crater of Diamonds State Park can be quite valuable. For example, the 3.03 ct. Strawn-Wagner Diamond, found here in 1990, was cut into a 1.09 ct. gem.

What color diamond is the cheapest?

The cheapest diamond colors are typically Brown and Grey, followed by lower-end yellows (like K-M grades), as rarity drives price, making colorless (D-F) and vivid fancy colors (pinks, blues) most expensive; however, for budget-friendly white diamonds, grades like I, J, K, or even G offer great value by having slight, often unnoticeable warmth, especially in yellow gold. 

Are black diamonds rarer?

Due to their scarcity, natural black diamonds are considered to be rarer than the traditional colorless diamond. In terms of pricing, natural fancy carbonados can cost anywhere from $3,000 to $5,000 a carat, obviously contingent upon size and among other factors.

Are lab-grown diamonds ever rare?

Lab-grown diamonds, on the other hand, are a relatively newer entry to the market. While they share the same physical and chemical properties as mined diamonds, their infinite supply makes them less rare and, therefore, less valuable.

Will we ever run out of natural diamonds?

Natural diamonds won't completely run out soon, but supply is shrinking as major mines deplete (like in Canada by 2030s), leading to potential price increases, while lab-grown diamonds (LGDs) flood the market, shifting consumer focus to rarity and history for natural stones. While some expect a gradual decline in mining output, new discoveries could occur, and existing stockpiles, plus the rise of LGDs, mean natural diamonds remain available, albeit increasingly valued for their unique story and investment potential.
 

Is the Oppenheimer family rich?

Now 55, he is the eldest son in the fourth generation of the mining dynasty that began with Ernest Oppenheimer in the early 1900s. The family is worth $10.4-billion, according to Forbes. Almost all of that money was made from gold and diamonds dug from beneath southern African soil.

Who owns Elizabeth Taylor's diamond ring now?

Elizabeth Taylor owned several famous diamond rings, but her iconic Taylor-Burton Diamond (69.42 carats) is now owned by luxury jeweler Robert Mouawad, part of his private collection, and hasn't been seen publicly since 1979. Her other famous ring, the Elizabeth Taylor Diamond (formerly Krupp Diamond, 33.19 carats), was bought by the South Korean E-Land Group at auction and displayed at their theme park. 

What is 1000 times rarer than a diamond?

Tanzanite is about 1,000 times rarer than diamonds. The area where it's found is only about 4 kilometers wide and 2 kilometers long.

How to spot a diamond in the dirt?

A diamond tester is more accurate than a scratch test.

Once the suspected diamond has been located, press the diamond tester's tip against it. Minerals that make noise and light up are diamonds. If it doesn't, there is a difference between a gemstone and a precious stone.

How often is a crater of diamonds plowed?

The park uses a bulldozer pulling a bedding plow to work the search area into windrows. We follow the lay of the land when plowing to help water drain from the surface and promote natural sorting of the diamond-bearing soil. We plow about once a month as weather allows, or six to eight times each year.