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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (314): Iolite Clear All
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ID: 4107731 pcs
1.33ct Iolite
9.32mm x 4.54mm x 3.81mm
USD 27.40
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ID: 4303381 pcs
0.47ct Iolite
6.58mm x 4.57mm x 3.04mm
USD 9.40
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ID: 2796306 pcs
3.11ctw Iolite
5.87mm x 3.98mm x 3.46mm
USD 37.32
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ID: 4306521 pcs
0.45ct Iolite
6.73mm x 4.94mm x 3.12mm
USD 9.00
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ID: 4107041 pcs
0.94ct Iolite
7.22mm x 5.02mm x 3.48mm
USD 19.36
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ID: 4122465 pcs
1.31ctw Iolite
4.96mm x 3.01mm x 2.31mm
USD 26.20
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ID: 4301731 pcs
0.41ct Iolite
6.73mm x 4.99mm x 2.33mm
USD 8.20
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ID: 2795665 pcs
2.52ctw Iolite
5.93mm x 3.85mm x 2.85mm
USD 30.24
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ID: 4089345 pcs
2.33ctw Iolite
5.89mm x 4.10mm x 3.37mm
USD 48.09
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ID: 4303461 pcs
0.64ct Iolite
7.86mm x 5.00mm x 3.07mm
USD 12.80
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ID: 4302441 pcs
0.39ct Iolite
6.88mm x 3.85mm x 2.10mm
USD 7.80
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ID: 3450651 pcs
1.70ct Iolite
10.00mm x 6.93mm x 5.05mm
USD 51.00
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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: 3451871 pcs
2.91ct Iolite
13.05mm x 7.89mm x 5.66mm
USD 87.30
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ID: 4306481 pcs
0.59ct Iolite
6.93mm x 4.77mm x 3.29mm
USD 11.80
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ID: 3416401 pcs
2.96ct Iolite
10.03mm x 9.33mm x 6.44mm
USD 82.88
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ID: 4123571 pcs
1.38ct Iolite
9.73mm x 5.04mm x 3.57mm
USD 27.60
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ID: 4303431 pcs
0.78ct Iolite
7.83mm x 4.04mm x 3.27mm
USD 15.60
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ID: 3408791 pcs
3.13ct Iolite
13.23mm x 8.00mm x 6.03mm
USD 147.11
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ID: 41044210 pcs
1.81ctw Iolite
4.91mm x 3.01mm x 2.43mm
USD 18.61
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ID: 2551225 pcs
1.34ctw Iolite
4.96mm x 3.06mm x 2.71mm
USD 14.07
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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