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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (306): Iolite Iolite Clear All
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ID: 2801026 pcs
1.34ctw Iolite
5.10 x 3.15 x 3.11mm
USD 8.04
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ID: 3421501 pcs
5.28ct Iolite
15.12 x 10.09 x 7.45mm
USD 248.16
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ID: 4122486 pcs
1.34ctw Iolite
4.97 x 2.86 x 2.28mm
USD 26.80
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ID: 28011910 pcs
1.81ctw Iolite
4.88 x 2.96 x 1.84mm
USD 10.86
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ID: 4126734 pcs
1.62ctw Iolite
6.86 x 4.46 x 2.69mm
USD 32.40
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ID: 4300771 pcs
0.53ct Iolite
5.92 x 4.12 x 3.73mm
USD 10.60
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ID: 3404801 pcs
3.77ct Iolite
11.93 x 9.76 x 6.79mm
USD 177.19
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ID: 4303411 pcs
0.46ct Iolite
6.01 x 3.82 x 2.66mm
USD 9.20
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ID: 3408541 pcs
1.48ct Iolite
9.25 x 5.78 x 3.56mm
USD 44.40
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ID: 4106484 pcs
1.85ctw Iolite
6.89 x 4.75 x 2.90mm
USD 38.11
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ID: 2796476 pcs
2.88ctw Iolite
6.04 x 3.91 x 2.62mm
USD 34.56
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ID: 4086992 pcs
1.07ctw Iolite
7.88 x 3.83 x 3.33mm
USD 22.08
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ID: 2795556 pcs
2.89ctw Iolite
6.89 x 4.88 x 2.19mm
USD 34.68
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ID: 4128885 pcs
1.80ctw Iolite
5.98 x 3.96 x 3.15mm
USD 36.00
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ID: 4105092 pcs
1.17ctw Iolite
7.87 x 4.03 x 3.74mm
USD 24.10
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ID: 3408791 pcs
3.13ct Iolite
13.23 x 8.00 x 6.03mm
USD 147.11
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ID: 41044510 pcs
1.67ctw Iolite
4.97 x 3.02 x 2.17mm
USD 17.17
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ID: 4301771 pcs
0.51ct Iolite
6.76 x 4.22 x 3.60mm
USD 10.20
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ID: 4306581 pcs
0.88ct Iolite
7.89 x 4.25 x 3.34mm
USD 17.60
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ID: 2795655 pcs
2.06ctw Iolite
5.88 x 3.95 x 2.21mm
USD 24.72
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ID: 4300721 pcs
0.46ct Iolite
6.65 x 4.93 x 2.53mm
USD 9.20
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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