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 |
0.17ct Medium Light-Violet Iolite, Square, VVS
3.3 x 3.2 mm
$ 8.16
0.25ct Dark Blue Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 12.00
0.30ct Intense Violet Blue Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 14.40
0.27ct Violet Blue Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 12.96
0.17ct Silverish Blue Iolite, Round, VS
4 mm (calibrated)
$ 8.16
0.21ct Dark Bluish Purple Iolite, Square, VVS
3.6 x 3.6 mm
$ 10.08
0.15ct Deep Purple Iolite, Marquise, VVS
5.6 x 2.9 mm
$ 7.20
0.25ct Deep Purple Iolite, Emerald Cut, VS
5 x 3 mm (calibrated)
$ 12.00
0.22ctw Deep Purple Iolite, Square, VS
2.7 x 2.7 mm
$ 10.56
0.26ct Pinkish Violet Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 12.48
0.13ct Dark Bluish Purple Iolite, Oval, VS
5 x 3 mm (calibrated)
$ 6.24
0.19ct Deep Purple Iolite, Round, VS
3.8 mm
$ 9.12
0.21ct Dark Bluish Purple Iolite, Oval, VS
5 x 3 mm (calibrated)
$ 10.08
0.26ct Deep Violet Iolite, Baguette, VS-SI
5 x 3 mm (calibrated)
$ 12.48
0.37ct Deep Blue Iolite, Pear Shape, VS
5 x 5 mm (calibrated)
$ 14.80
0.24ct Medium Violet Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 11.52
0.31ct Medium Violet Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 14.88
0.26ct Dark Bluish Purple Iolite, Baguette, VS-SI
5 x 3 mm (calibrated)
$ 12.48
0.27ct Intense Violet Blue Iolite, Pear Shape, VS
6 x 4 mm (calibrated)
$ 12.96
0.25ct Light Pinkish Violet Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 12.00
0.29ct Dark Bluish Purple Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 13.92
0.39ct Dark Bluish Purple Iolite, Marquise, VS
7.6 x 3.9 mm
$ 18.72
0.28ct Deep Purple Iolite, Baguette, VS
5 x 3 mm (calibrated)
$ 13.44
0.18ct Medium Light-Violet Iolite, Emerald Cut, VS-SI
5 x 3 mm (calibrated)
$ 8.64
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 
This is the first time I have used this site. I was dissatisfied with the quality of gems and supplies elsewhere and decided to try GemSelect. They are awesome! I was thrilled to see the variety and the great web performance. There was the ability to search for information as well as gems. Things like the clarity rating system and caret weight of the gems. I have always loved making things and I have just started to make jewelry as a business. However I have never made a ring before and have always wanted to. On GemSelect I was able to find good quality gems to use in my creations. I am so glad the website is so easy to use. Thank you GemSelect.
Overall Rating -> 10
The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.
Overall Rating -> 8 
Good prices
Overall Rating -> 10
The website has a good selection, the interface is very intuitive.
Overall Rating -> 10
I love the product and the details about each of them.
Overall Rating -> 10
All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.
