All the below stones have been recut, because their beauty was compromised through a less than optimum cut. They where either faceted for weight retention, or on old faceting machines or on machines which do not permit to read the faceting angles or by inexperienced faceters, or a combination of all above.
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See for yourself the difference after the stones have been recut. Only now do they reveal their beauty and show the true nature of a gemstone. |
| Before |
After |
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Dimension : 27.58 x 16.47 x 12.46 mm
Weight : 61.93 ct
Topaz in a step cut.
Rectangle cut corner,
resulting in reduced brilliance. |
Dimension : 27.25 x 15.84 x 12.46 mm
Weight : 56.14 ct
Topaz in a step cut with 14 concave facets.
Cut for best brilliance.
Loss of weight -9.38% |
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Dimension : 14.68 x 12.30 x 8.8 mm
Weight : 11.22 ct
Tourmaline in a mixed cut.
Oval shape, featuring a prominent window. |
Dimension : 14.68 x 12.30 x 8.8 mm
Weight : 9.89 ct
Tourmaline in modified brilliant cut.
Cut for best brilliance.
Crown and girde ramained untouched.
Loss of weight -11.86% |
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Dimension : not changed
Weight : 21.04ct
Aquamarine in a step cut.
Rectangle cut corner,
resulting in reduced brilliance. |
Dimension : not changed
Weight : 20.20 ct
Aquamarine in a step cut with 4 concave facets.
Cut for best brilliance.
Loss of weight -3.99% |
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Dimension : 13.99 x 8.63 x 6.38 mm
Weight : 8.45 ct
Rectangle cushion pavillion cut below critical angle,
resulting in reduced brilliance. |
Dimension : 12.97 x 7.47 x 6.03 mm
Weight : 5.80 ct
Cut for best brilliance.
Loss of weight -31.4% |
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Dimension : 14.09 x 10.90 x 6.11 mm
Weight :8.06 ct
Oval shape with a window,
resulting in reduced brilliance. |
Dimension : 12.80 x 10.20 x 5.82 mm
Weight : 5.00 ct
Cut for best brilliance.
Loss of weight -37.96% |
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Dimension : 23.32 x 14.84 x 8.13 mm
Weight : 24.09 ct
Oval shape with a window,
resulting in reduced brilliance. |
Dimension : 18.65 x 12.62 x 7.59 mm
Weight : 16.27 ct
Cut for best brilliance.
Loss of weight -32.46% |
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Weight : 3.85 ct
Citrine in a step cut.
The color zoning is niceliy visible.
This cutting style is preserving color zoning. |
Weight : 3.56 ct
Citrine in a step cut with 6 aditional concave facets.
The color became uniform.
The multiple reflections of the concave facets
give life and fire to this citrine. |
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Dimension : 10.00 x 7.90 mm
Weight : 2.90 ct
Irregular shape with irregular facets,
resulting in reduced brilliance. |
Dimension : 9.27 x 7.28 x 5.79 mm
Weight : 1.60 ct
Cut for best brilliance.
Loss of weight -44.82% |
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Dimension : 9.36 x 7.88 x 4.78 mm
Weight : 2.91 ct
Irregular shape with a window,
resulting in reduced brilliance. |
Dimension : 7.99 x 6.77 x 4.59 mm
Weight : 1.64 ct
Cut for best brilliance.
Loss of weight -43.64% |
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Dimension : 16.23 x 14.01 mm
Weight : 12.89 ct
Irregular shape with a window,
resulting in reduced brilliance. |
Dimension : 15.50 x 11.68 mm
Weight : 8.95 ct
Cut for best brilliance.
Loss of weight -30.56% |
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Dimension : not changed
Weight : 3.17 ct
Emerald with dark reflections and
inclusions reflecting serveral times. |
Dimension : not changed
Weight : 3.01 ct
This emerald has been partially recut to remove some inclusions, to avoid reflection of the remaining ones and to improve black facets.
Retaining weight was of outmost importance. Loss of weight -5.04% |
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Dimension :
Weight : 5.26 ct
Tanzanite with a window,
resulting in reduced brilliance. |
Dimension : 11.56 x 7.88 x 5.71 mm
Weight : 3.36 ct
Cut for best brilliance.
Loss of weight -36.12% |
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Dimension : 12.40 x 12.40 x 5.30 mm
Weight : 5.99 ct
Irregular shape with a window,
resulting in reduced brilliance.
C-Axis was darkening the Tourmaline. |
Dimension : 10.46 x 7.52 x 4.76 mm
Weight : 3.03 ct
Remove dark reflection of C-Axis.
Cut for best brilliance.
Loss of weight -49.41% |
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All above stones where recut with an Ultra-Tec V5D digital faceting machine. Some where retouched with the Ultra-Tec fantasy machine |
| Hubert Heldner December 2020 |