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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (318): Iolite Clear All
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ID: 4303441 pcs
0.47ct Iolite
6.78mm x 3.96mm x 2.36mm
USD 9.40
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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: 4126211 pcs
0.70ct Iolite
7.95mm x 5.10mm x 3.39mm
USD 14.00
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ID: 4308101 pcs
0.50ct Iolite
6.76mm x 4.90mm x 2.83mm
USD 10.00
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ID: 4301681 pcs
0.40ct Iolite
6.71mm x 4.54mm x 2.75mm
USD 8.00
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ID: 4107651 pcs
0.94ct Iolite
8.01mm x 4.13mm x 3.81mm
USD 19.36
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ID: 4306551 pcs
0.45ct Iolite
5.12mm x 5.11mm x 3.21mm
USD 9.00
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ID: 4108644 pcs
2.23ctw Iolite
7.81mm x 4.01mm x 3.29mm
USD 45.94
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ID: 3404801 pcs
3.77ct Iolite
11.93mm x 9.76mm x 6.79mm
USD 177.19
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ID: 4300721 pcs
0.46ct Iolite
6.65mm x 4.93mm x 2.53mm
USD 9.20
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ID: 2800396 pcs
1.15ctw Iolite
5.05mm x 3.15mm x 1.99mm
USD 6.90
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ID: 4123121 pcs
0.86ct Iolite
8.90mm x 4.43mm x 2.84mm
USD 17.20
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ID: 28011910 pcs
1.81ctw Iolite
4.88mm x 2.96mm x 1.84mm
USD 10.86
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ID: 4122527 pcs
1.90ctw Iolite
5.04mm x 2.99mm x 2.45mm
USD 38.00
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ID: 4127384 pcs
2.42ctw Iolite
7.08mm x 4.97mm x 3.63mm
USD 48.40
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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: 2796426 pcs
3.04ctw Iolite
5.98mm x 3.97mm x 2.91mm
USD 36.48
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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: 3404901 pcs
2.13ct Iolite
12.07mm x 7.21mm x 4.95mm
USD 63.90
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ID: 2801516 pcs
1.13ctw Iolite
5.06mm x 3.06mm x 2.60mm
USD 6.78
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ID: 2791846 pcs
3.36ctw Iolite
6.06mm x 4.09mm x 3.40mm
USD 47.04
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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