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• Explore the Diamond Toolkit on the Cash and Treasures main site.

Most notable for diamonds are Botswana, South Africa, Russia, Australia and Canada. In the US, diamonds and their host rocks have been found in many states. In particular, the Colorado-Wyoming State Line district south of Laramie, has been the most productive area for the number of diamonds in the US (>130,000 diamonds) followed by Murfreesboro, Arkansas. Diamonds are isometric and occur in many crystal habits including cubes, octahedrons and other forms. They are hard with greasy luster and often found in streams (specific gravity of 3.5), kimberlite, lamproite, lamprophyre and other rare rock types. The host rocks for diamond are rare.

Photos of raw diamonds from Wyoming (left) and cubic diamond from Canada (right).

Information on diamonds, their characteristics and how to identify them can be found in various publications including Gems, Minerals and Rocks ...

General information on Diamonds

Crater of Diamonds State Park Murfreesboro Arkansas
Valuable, beautiful, somewhat rare, hardest known material.
Free RMAG article on diamonds and gemstones
Free Placer Diamond pamphlet pdf

Where to find it:

Crater of Diamonds State Park Murfreesboro Arkansas

GPS Coordinates, if known: Town/region: State, country: Tips for finding it:	GPS Coordinates, if known: Town/region: State, country: Tips for finding it:
GPS Coordinates, if known: Town/region: Murfreesboro State, country: Arkansas Tips for finding it: see below	GPS Coordinates, if known: Town/region: State, country: Tips for finding it:

Tools needed: Shovel, maddox, 4 prong heavy pitch fork, 1/2" mesh screen, 1/4" mesh screen, stainless steel screen mesh (same size as window screens)... serruca, 5 gallon buckets, 55 gallon barrel - cut 1/3 away lengthwise (for washing).
PROBE: stainless steel "T" handle 3/8" dia with 5/8" diameter pointed tip.





Special skills needed: persistance/Luck




Identification tips: glassy somewhat metallic looking.




Additional helpful resources:
Diamonds are heavy and are found in gravel layers. Although, since the park was mined they can be anywhere. To increase chances you use the probe to locate a gravel pocket and dig to the gravel. Wash the gravel in the different size screens stacked one over the next smaller screen. Carefully look at the large screen as a 4 carat or larger diamond will be in that screen... Use a serruca (spelling?) - round screen made with stainless steel screen about the size of window screen to look through the gravel in the 1/4"mesh screen and gravel in the screen sized mesh. The park attendants will show you how to use the serruca. Go slow this is the most important step. After shaking the seruca flip it over in one motion and land on level ground. Not too hard... The diamonds will be on top.

Some more information about diamonds as a gemstone, including a photo of a rough diamond from Arkansas, see:
Diamonds - King of the Gemstones

Recommend a guide:
If you have any questions I would be happy to try to answer them. rockndoc2006@yahoo.com



Recommend an appraiser: