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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (348): Iolite Clear All
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ID: 3318652 pcs
2.33ctw Iolite
6.13mm x 6.10mm x 4.10mm
USD 60.58
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ID: 4126684 pcs
2.50ctw Iolite
7.86mm x 5.52mm x 2.98mm
USD 50.00
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ID: 4123131 pcs
0.67ct Iolite
7.69mm x 4.08mm x 2.68mm
USD 13.40
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ID: 4106545 pcs
1.67ctw Iolite
4.96mm x 4.82mm x 2.85mm
USD 34.40
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ID: 2795655 pcs
2.06ctw Iolite
5.88mm x 3.95mm x 2.21mm
USD 24.72
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ID: 2800856 pcs
1.14ctw Iolite
5.06mm x 3.08mm x 2.08mm
USD 6.84
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ID: 4122558 pcs
1.46ctw Iolite
5.00mm x 2.54mm x 1.94mm
USD 29.20
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ID: 4128823 pcs
1.29ctw Iolite
5.70mm x 3.91mm x 3.59mm
USD 25.80
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ID: 3449951 pcs
1.88ct Iolite
9.88mm x 7.08mm x 5.48mm
USD 56.40
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ID: 4107671 pcs
1.23ct Iolite
9.87mm x 4.74mm x 3.36mm
USD 25.34
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ID: 3405951 pcs
1.40ct Iolite
9.52mm x 6.81mm x 4.29mm
USD 32.20
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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: 4106504 pcs
2.45ctw Iolite
6.95mm x 4.95mm x 3.42mm
USD 50.47
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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: 4308131 pcs
0.44ct Iolite
6.25mm x 4.77mm x 2.70mm
USD 8.80
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ID: 4122475 pcs
1.13ctw Iolite
4.97mm x 2.74mm x 2.21mm
USD 22.60
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ID: 41045810 pcs
2.54ctw Iolite
5.06mm x 3.25mm x 2.78mm
USD 26.11
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ID: 41045610 pcs
2.14ctw Iolite
5.12mm x 3.26mm x 2.21mm
USD 22.00
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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: 4302481 pcs
0.51ct Iolite
7.50mm x 4.36mm x 1.98mm
USD 10.20
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ID: 4084951 pcs
1.21ct Iolite
6.94mm x 6.90mm x 5.20mm
USD 24.97
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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