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 |
0.27ct Medium Violet Iolite, Emerald Cut, SI
5 x 3 mm (calibrated)
$ 12.96
0.30ct Medium Violet Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 14.40
0.16ct Deep Violet Iolite, Oval, VS
4.1 x 3.1 mm
$ 7.68
0.33ct Silverish Blue Iolite, Pear Shape, VS
6 x 4 mm (calibrated)
$ 15.84
0.28ct Bluish Violet Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 13.44
0.33ct Dark Bluish Purple Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 15.84
0.18ct Medium Light Violet Iolite, Baguette, VS
4.8 x 3 mm
$ 8.64
0.27ct Dark Bluish Purple Iolite, Emerald Cut, VS
5 x 3 mm (calibrated)
$ 12.96
0.18ct Very Light Pinkish Violet Iolite, Baguette, VS-SI
5 x 3 mm (calibrated)
$ 8.64
0.40ct Silverish Blue Iolite, Oval, VS
6 x 4 mm (calibrated)
$ 4.63
0.25ct Light Pinkish Violet Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 12.00
0.17ctw Light Purplish Blue Iolite, Square, VS
2.6 x 2.5 mm
$ 8.16
0.29ct Dark Bluish Purple Iolite, Emerald Cut, VS
5 x 3 mm (calibrated)
$ 13.92
0.23ct Deep Purple Iolite, Round, VS-SI
4.2 mm
$ 11.04
0.18ctw Dark Blue Iolite, Square, VS
2.6 x 2.6 mm
$ 8.64
0.31ct Deep Purple Iolite, Baguette, VS-SI
5 x 3 mm (calibrated)
$ 14.88
0.27ct Dark Bluish Purple Iolite, Emerald Cut, VS
5 x 3 mm (calibrated)
$ 12.96
0.32ct Dark Bluish Purple Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 15.36
0.22ctw Deep Purple Iolite, Square, VS
2.7 x 2.7 mm
$ 10.56
0.27ct Dark Violet Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 12.96
0.24ct Dark Bluish Purple Iolite, Emerald Cut, VS
4.6 x 3.2 mm
$ 11.52
0.20ctw Silverish Blue Iolite, Square, VS
2.6 x 2.6 mm
$ 9.60
0.26ct Deep Purple Iolite, Emerald Cut, VS
5 x 3 mm (calibrated)
$ 12.48
0.25ct Dark Bluish Purple Iolite, Round, VS
4.2 mm
$ 12.00
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 -> 8 
First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.
Overall Rating -> 10 
Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10
Overall Rating -> 9 
I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!
Overall Rating -> 9
the gems were smaller than I thought but I was at fault for not reading the complete discrimination
Overall Rating -> 10
On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc
Overall Rating -> 10
I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.
