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Unheated tanzanite weighing 16.8ct.

This is tanzanite’s natural color when it is not heated to a brighter hue.

The base color is greenish brown, interspersed with pastel hues of blue, purple and yellow.

Because the stone has a quartz-like transparency, the stone displays with high lustre through its medley of colors.

Being trichroic stones, this tanzanite specimen can be completely light/pastel in one angle, and darken in another angle.

At night, or in mixed indoor lighting, the stone is not dark but a soft bright grey.

The watery stone is cut to display with plenty of fire, a wonderful way to see the colors of an unheated tanzanite.

The stone measures 11.4 x 14.7 x 10.9 mm.

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