Natural Iolite Gemstones
Explore natural iolite gemstones in rich violet-blue shades, perfect for custom jewelry and collectors.
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Bi-color
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Black
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Blue Iolite
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Brown
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Golden
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Gray
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Green
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Multicolor
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Orange
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Pink
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Purple
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Red
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Turquoise
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Violet Iolite
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White
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Yellow
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
0.21ct Dark Bluish Purple Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 10.08
0.37ct Deep Blue Iolite, Pear Shape, VS
5 x 5 mm (calibrated)
$ 14.80
0.17ct Medium Light-Violet Iolite, Square, VVS
3.3 x 3.2 mm
$ 8.16
0.27ct Dark Bluish Purple Iolite, Emerald Cut, VS
5 x 3 mm (calibrated)
$ 12.96
0.20ctw Silverish Blue Iolite, Square, VS
2.6 x 2.6 mm
$ 9.60
0.27ct Bluish Violet Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 12.96
0.21ct Medium Light Violet Iolite, Baguette, VS-SI
5 x 2.5 mm
$ 10.08
0.28ct Dark Blue Iolite, Pear Shape, VS
4 x 4 mm (calibrated)
$ 13.44
0.26ct Pinkish Violet Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 12.48
0.30ct Dark Bluish Purple Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 14.40
0.21ct Medium Light-Violet Iolite, Emerald Cut, VS
5 x 2.8 mm
$ 10.08
0.27ct Silverish Blue Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 12.96
0.15ct Deep Blue Iolite, Square, VS
3 x 3 mm (calibrated)
$ 7.20
0.18ct Medium Light-Violet Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 8.64
0.17ct Silverish Blue Iolite, Round, VS
4 mm (calibrated)
$ 8.16
0.29ct Silverish Blue Iolite, Emerald Cut, VS
5 x 3 mm (calibrated)
$ 13.92
0.20ct Royal Violet Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 9.60
0.22ctw Dark Bluish Purple Iolite, Square, VVS-VS
2.7 x 2.6 mm
$ 10.56
0.22ctw Deep Purple Iolite, Square, VS
2.7 x 2.7 mm
$ 10.56
0.24ct Dark Bluish Purple Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 11.52
0.40ct Silverish Blue Iolite, Oval, VS
6 x 4 mm (calibrated)
$ 4.63
0.17ct Medium Light-Violet Iolite, Pear Shape, VVS
4.9 x 3.2 mm
$ 8.16
0.30ct Deep Purple Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 14.40
0.20ctw Light Purplish Blue Iolite, Square, VS
2.6 x 2.6 mm
$ 9.60
Why Buy Iolite from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
Natural Iolite Gemstones
Our natural iolite gemstones are carefully selected for their deep violet-blue color and excellent transparency. Also known as cordierite, iolite is prized for its unique pleochroism, showing different shades when viewed from different angles.
Loose Iolite Stones Online
Buy loose iolite stones online with confidence at GemSelect. Choose from a wide variety of shapes, sizes, and calibrated options, all backed by detailed specifications and worldwide shipping.
Iolite for Custom Jewelry
Iolite is a durable gemstone with a Mohs hardness of 7 to 7.5, making it suitable for rings, earrings, pendants, and bracelets. Its rich blue-violet tones offer an affordable alternative to sapphire for elegant jewelry designs.
Faceted Iolite Stones
Faceted iolite gemstones maximize brilliance and highlight the stone’s natural color shifts. Popular cuts include oval, round, pear, and cushion shapes for both classic and modern settings.
Iolite Cabochons
Iolite cabochons feature smooth, polished surfaces that emphasize color depth and subtle internal characteristics. They are ideal for distinctive designer pieces and artisan jewelry.
Calibrated Iolite Sizes
We offer calibrated iolite gemstones in standard sizes such as 6 mm, 7 mm, and 8 x 6 mm, making them easy to set into pre-made jewelry mountings.
Iolite Birthstone & Meaning
Iolite is often associated with intuition, clarity, and inner vision. It is sometimes linked to the zodiac sign Sagittarius and is valued by collectors for both its beauty and symbolism.
Learn more about the properties, history, and gemological details on our Iolite Information Page.
FAQs
Is iolite a natural gemstone?
Yes, our iolite gemstones are 100% natural. Any treatments, if present, are fully disclosed for complete transparency.
What makes iolite unique?
Iolite is known for strong pleochroism, meaning it can display different colors such as blue, violet, and gray depending on the viewing angle.
Is iolite suitable for everyday rings?
With a Mohs hardness of 7 to 7.5, iolite is durable enough for occasional daily wear, though protective settings are recommended for rings.
Is iolite the same as cordierite?
Yes, iolite is the gem-quality variety of the mineral cordierite. The names are often used interchangeably in the gem trade.
Do you offer iolite in calibrated sizes?
Yes, we stock calibrated iolite gemstones in standard millimeter sizes suitable for commercial and custom jewelry settings.
Is iolite a birthstone?
Iolite is not a traditional modern birthstone, but it is sometimes associated with Sagittarius and is occasionally used as an alternative December gemstone.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
The website has a good selection, the interface is very intuitive.
Overall Rating -> 10
I have been very happy with my prior purchases and enjoy the website experience.
Overall Rating -> 10
I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.
Overall Rating -> 9 
My first experience buying loose gems, seems to be fairly priced, I'll be buying more later
Overall Rating -> 10
I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.
Overall Rating -> 10
Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.
