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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (347): Iolite Clear All
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ID: 3404791 pcs
3.56ct Iolite
12.36mm x 7.76mm x 4.96mm
USD 167.32
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ID: 4302491 pcs
0.65ct Iolite
8.24mm x 4.03mm x 2.53mm
USD 13.00
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ID: 2801575 pcs
1.05ctw Iolite
5.12mm x 3.16mm x 2.70mm
USD 6.30
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ID: 4123971 pcs
0.74ct Iolite
6.98mm x 4.84mm x 3.05mm
USD 14.80
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ID: 4305441 pcs
0.75ct Iolite
6.97mm x 4.95mm x 2.85mm
USD 15.00
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ID: 4105612 pcs
1.27ctw Iolite
6.95mm x 4.89mm x 3.67mm
USD 26.16
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ID: 41044310 pcs
1.79ctw Iolite
5.01mm x 2.99mm x 2.38mm
USD 18.40
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ID: 28012110 pcs
2.01ctw Iolite
5.06mm x 3.03mm x 2.20mm
USD 12.06
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ID: 4106514 pcs
2.59ctw Iolite
7.11mm x 5.01mm x 3.64mm
USD 53.35
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ID: 4123521 pcs
1.07ct Iolite
8.93mm x 4.28mm x 3.60mm
USD 21.40
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ID: 4128916 pcs
2.21ctw Iolite
6.08mm x 3.97mm x 3.06mm
USD 44.20
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ID: 3450231 pcs
2.70ct Iolite
12.93mm x 8.03mm x 5.23mm
USD 81.00
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ID: 3450731 pcs
3.09ct Iolite
12.67mm x 8.39mm x 5.95mm
USD 145.23
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ID: 3408461 pcs
1.77ct Iolite
10.50mm x 7.32mm x 4.66mm
USD 53.10
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ID: 4107031 pcs
0.84ct Iolite
6.92mm x 4.78mm x 3.22mm
USD 17.30
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ID: 4107711 pcs
0.97ct Iolite
7.96mm x 4.11mm x 3.44mm
USD 19.98
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ID: 4302511 pcs
0.73ct Iolite
7.64mm x 3.92mm x 3.17mm
USD 14.60
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ID: 2796436 pcs
2.83ctw Iolite
6.03mm x 3.85mm x 2.71mm
USD 33.96
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ID: 2800456 pcs
1.06ctw Iolite
4.82mm x 3.04mm x 1.90mm
USD 6.36
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ID: 3408871 pcs
6.21ct Iolite
13.20mm x 12.61mm x 7.40mm
USD 353.97
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ID: 41046110 pcs
2.14ctw Iolite
4.99mm x 3.14mm x 2.57mm
USD 22.00
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Iolite
The name iolite comes from the Greek "ios", which means violet. The Vikings probably mined iolite from deposits in Norway and Greenland. Viking sailors used iolite as a polarizing filter to find the sun on cloudy days for safe offshore navigation. Iolite is usually a purplish blue when cut properly, with a softness to the color that is quite attractive. The favorite color is that pretty, violet blue that is unlike other gemstones. Pleochroism is very pronounced in iolite and is seen as three different color shades in the same stone. In viewing an iolite stone, the colors violet blue, yellow gray and a light blue can be seen; all a result of pleochroism.

Its hardness of 7-7.5 makes iolite a suitable jewelry stone, though the presence of cleavage must be taken into account and some care taken, such as protection from blows. Iolite, a gem variety of the mineral cordierite, is an unusual stone indeed that is not commonly seen in jewelry. Iolite is known as the gemstone for clear vision.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart