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Natural Iolite Gemstones

Explore natural iolite gemstones in rich violet-blue shades, perfect for custom jewelry and collectors.

Iolite Weight
Iolite Size
Iolite Clarity
Iolite Price

Size Explained

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For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue Iolite
Brown
Gray
Green
Multicolor
Orange
Pink
Purple
Red
Turquoise
Violet Iolite
White
Yellow
Single
Pairs
Lots
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0.28ct Violet Iolite, Pear Shape, VS

6 x 4 mm (calibrated)

$ 13.44

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0.27ct Violet Iolite, Marquise, VS

6 x 3 mm (calibrated)

$ 12.96

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0.35ct Violet Iolite, Pear Shape, VS

6 x 4 mm (calibrated)

$ 16.80

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0.40ct Blue Iolite, Oval, VS

6 x 4 mm (calibrated)

$ 4.63

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0.33ct Blue Iolite, Pear Shape, VS

6 x 4 mm (calibrated)

$ 15.84

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0.35ct Violet Iolite, Pear Shape, VS

6 x 4 mm (calibrated)

$ 16.80

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0.35ct Violet Iolite, Pear Shape, VS

6 x 4 mm (calibrated)

$ 16.80

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0.28ct Violet Iolite, Emerald Cut, VS-SI

6.1 x 3.2 mm

$ 13.44

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0.27ct Violet Iolite, Oval, VS

6 x 4 mm (calibrated)

$ 12.96

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0.24ct Violet Iolite, Marquise, VVS-VS

6 x 3 mm (calibrated)

$ 11.52

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0.27ct Blue Iolite, Pear Shape, VS

6 x 4 mm (calibrated)

$ 12.96

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Why Buy Iolite from GemSelect?

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.

Loose Iolite Gemstones for Jewelry Making

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 star ratings

Love, and have always loved, your website.

Posted By Aberabic in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

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

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.

Posted By HVeeder in February, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate
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