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Diamond digger
11-14-2012, 01:40 PM
How to identify a diamond in the field.

It is relatively easy a few things to remember.

1) All diamonds have a natural oily layer on them that repel water.

2) A diamond does not get hot

3) It is a crystal and many have triangular shapes on the sides.

4) It can be any color but it will have the same caracteristics

5) All diamonds have a very special shine to them in their uncut state one you will never forget once you have seen one.

6) Carry a 10 x loop (Magnifying glass) with you it helps to show the inside of the stone and usually there are maybe one or two spots in them or a small shift in the crystal itself.

7) The usual diamond shapes are: Octahedron, Dodecahedron, Cubes

Whole and Irregular Shapes
8) A diamond does not get wet so blow your hot breath on it and there will be no moisture on it.

9) Place the stone on a newspaper if it is not completely cloudy. Try seeing the print through the stone. If you can read the print or see it clearly, the stone is likely a fake. This test can have mixed results if your stone is very cloudy

10) Scratch the surface of a small compact mirror. A real diamond should have no trouble scratching your mirror. You can also try rubbing the stone with sandpaper. A real diamond should not be scratched

Rough diamonds that are modified forms of the octahedron, dodecahedron and cube and display both rounded faces, points and ribs are referred to as whole diamonds. If the same conditions prevail and the rough is elongated its known as an irregular. These shapes are common to river bed and alluvial placer deposits reflecting the rounding of edges that occur through weathering and transport from their surface origin to the place where their found as a placer deposit.

Attached are a few pictures to help. As you can see no two diamonds are exactly the same, close but not quite!

Hope it helps

Bill Bohan
11-14-2012, 02:00 PM
Thanks Andy,
Good info.