About the MiaDonna Diamond Simulant

Q: If cut is so important, why aren't all natural diamonds cut to superior standards?

Both the cutter and the seller have strong financial incentives to offer diamonds with inferior cuts. When a rough diamond is cut to superior standards, about 50% of the stone's original weight can be removed in the cutting process. By cutting a diamond too deep and/or too wide, the same piece of rough yields a finished diamond of greater carat weight. Unfortunately, these diamonds are dull, milky or dark in appearance.

This 1 carat rough can yield a
.50 carat diamond with excellent cut and
extraordinary brilliance, dispersion and scintillation, or... The same 1 carat rough can yield a
.75 carat diamond with fair cut
that is dull and milky in comparison

The mathematical formula for a round diamond works like this: for a cut with exceptional brilliance (rated "very good" or better), the depth of the diamond will measure between 57% to 65% of the total diameter. In other words, a 1 carat diamond that is 6.5mm wide and 3.9mm deep will display an exceptional return of light to the viewer's eye.

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