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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (348): Iolite Clear All
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ID: 3617661 pcs
4.15ct Iolite
13.49mm x 9.56mm x 6.27mm
USD 157.33
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ID: 2791796 pcs
2.88ctw Iolite
5.99mm x 3.99mm x 2.86mm
USD 40.32
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ID: 2800776 pcs
1.09ctw Iolite
5.06mm x 3.12mm x 2.24mm
USD 6.54
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ID: 4126724 pcs
2.27ctw Iolite
7.01mm x 4.94mm x 3.26mm
USD 45.40
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ID: 4107691 pcs
1.23ct Iolite
9.46mm x 4.58mm x 3.49mm
USD 25.34
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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: 4108624 pcs
1.59ctw Iolite
7.75mm x 3.98mm x 2.58mm
USD 32.75
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ID: 4106535 pcs
2.13ctw Iolite
5.05mm x 4.95mm x 3.30mm
USD 43.88
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ID: 4300741 pcs
0.38ct Iolite
6.39mm x 4.48mm x 2.52mm
USD 7.60
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ID: 4305401 pcs
0.65ct Iolite
7.00mm x 3.81mm x 3.11mm
USD 13.00
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ID: 27968810 pcs
2.01ctw Iolite
4.96mm x 3.02mm x 2.13mm
USD 12.06
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ID: 4303391 pcs
0.72ct Iolite
7.76mm x 4.93mm x 3.12mm
USD 14.40
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ID: 2796486 pcs
3.30ctw Iolite
6.10mm x 3.97mm x 3.07mm
USD 39.60
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ID: 4300791 pcs
0.47ct Iolite
6.17mm x 4.29mm x 3.18mm
USD 9.40
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ID: 41242610 pcs
2.25ctw Iolite
5.05mm x 2.87mm x 2.06mm
USD 45.00
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ID: 4127701 pcs
0.82ct Iolite
8.12mm x 5.89mm x 3.51mm
USD 16.40
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ID: 4110054 pcs
1.54ctw Iolite
6.19mm x 4.14mm x 2.83mm
USD 31.69
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ID: 4109974 pcs
1.72ctw Iolite
6.13mm x 4.12mm x 3.31mm
USD 35.40
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ID: 4127343 pcs
2.35ctw Iolite
6.97mm x 5.53mm x 3.75mm
USD 47.00
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ID: 2795705 pcs
2.66ctw Iolite
6.09mm x 3.85mm x 3.05mm
USD 31.92
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ID: 4123531 pcs
1.25ct Iolite
9.85mm x 4.91mm x 3.23mm
USD 25.00
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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