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Home Gemstones Pleochroic Gems

Pleochroic Gemstones

Explore natural loose pleochroic gemstones chosen for their fascinating angle-dependent color. These gems can reveal different hues as they are turned, making each stone distinctive for jewelry design or collecting.

Pleochroic Gems Weight
Pleochroic Gems Size
Pleochroic Gems Clarity
Pleochroic Gems Price

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0.76ct Green Tourmaline, Round, Transparent

5.5 mm (calibrated)

$ 13.03

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1.41ct Yellow Sphene, Oval, Transparent

6.4 x 6.3 mm

$ 7.02

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1.06ct Blue Kyanite, Oval, SI

7.1 x 5.3 mm

$ 26.39

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1.32ct Blue Kyanite, Oval, SI

7 x 5 mm (calibrated)

$ 32.87

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2.68ctw Pink Tourmaline, Round, Transparent

6.5 mm (calibrated)

$ 44.42

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1.38ctw Blue Tanzanite, Pear Shape, VS

5 x 3.9 mm

$ 52.92

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1.48ct Blue Kyanite, Oval, SI

8 x 6 mm (calibrated)

$ 29.48

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0.24ct Violet Iolite, Emerald Cut, VS-SI

5 x 3 mm (calibrated)

$ 9.56

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0.96ct Green Tourmaline, Round, Transparent

6 mm (calibrated)

$ 15.90

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1.44ct Green Tourmaline, Emerald Cut, VVS-VS

11.9 x 3.7 mm

$ 37.86

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0.89ct Blue Kyanite, Oval, VS

7 x 5 mm (calibrated)

$ 18.47

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1.29ct Green Tourmaline, Round, Transparent

6.5 mm (calibrated)

$ 22.11

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1.34ct Blue Kyanite, Oval, SI

7.2 x 5.2 mm

$ 25.36

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0.71ct Green Tourmaline, Baguette, VVS

13.7 x 2.5 mm

$ 24.75

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1.57ct Pink Tourmaline, Oval, VVS-VS

7.5 x 6.9 mm

$ 240.82

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0.96ct Green Tourmaline, Emerald Cut, VVS-VS

18.3 x 2.5 mm

$ 25.24

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3.42ctw Yellow Sphene, Oval, Transparent

7 x 7 mm (calibrated)

$ 18.73

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9.22ct Black Tourmaline, Cushion, Opaque

13.9 x 10.5 mm

$ 45.92

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1.03ct Green Tourmaline, Fancy, VS

8 x 6 mm (calibrated)

$ 68.39

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0.51ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 20.32

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3.60ct Yellow Tourmaline, Cushion, Transparent

10 x 8 mm (calibrated)

$ 39.44

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1.94ctw Blue Tanzanite, Oval, VS

6 x 4 mm (calibrated)

$ 127.53

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0.13ct Green Alexandrite, Pear Shape, VS

3.9 x 2.8 mm

$ 90.64

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2.63ct Green Tourmaline, Emerald Cut, VVS-VS

16.1 x 4.5 mm

$ 72.04

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Why Buy Pleochroic Gems from GemSelect?

Shop Gems with Directional Color

Pleochroic gemstones are valued for the way they can show more than one color depending on viewing direction. This natural optical effect gives loose gems a dynamic personality, especially when viewed in hand or set in jewelry that allows movement and light from different angles.

Popular pleochroic gems may include varieties such as iolite, tanzanite, and andalusite, along with other stones where crystal structure creates visible color changes. The strength of the effect varies from gem to gem, so comparing photos, videos, descriptions, and gem details can help you choose the look you prefer.

Choosing Pleochroic Stones for Jewelry

When selecting a pleochroic gemstone for a ring, pendant, earrings, or a custom design, consider the face-up color, cutting style, size, shape, and how the gem will be oriented in the setting. A skilled cut can present an attractive dominant color while still allowing flashes of secondary hues as the stone moves.

For everyday jewelry, also review the gemstone species and durability information shown on the individual product page. Some pleochroic gems are better suited to protected settings or occasional wear, while others can work well in a wider range of designs.

Loose pleochroic gemstones showing angle-dependent colors

Color, Cut and Viewing Angle

The most enjoyable part of shopping for pleochroic gemstones is discovering how each stone behaves visually. One gem may appear blue from one direction and violet or gray from another; another may shift between earthy green, golden, or reddish tones. These subtle or dramatic changes make pleochroic gems appealing to collectors and jewelry makers who want something beyond a single static color.

Cut orientation plays an important role. The cutter must decide which color direction should face upward, balancing beauty, brilliance, shape, and weight. Because of this, two gemstones of the same variety can still look very different in finished form.

Buying Natural Loose Pleochroic Gemstones

GemSelect offers loose gemstones so you can choose the exact stone for your project. Review the measurements, carat weight, shape, clarity notes, and any available treatment or origin information listed for each individual gem before purchasing. This makes it easier to match a gemstone to your design requirements, preferred color direction, and budget.

Whether you are building a gemstone collection or sourcing a center stone for custom jewelry, pleochroic gems provide a memorable combination of natural color science and visual interest.

FAQ: Pleochroic Gemstones

What does pleochroic mean in gemstones?

Pleochroic gemstones can show different colors or color intensities when viewed from different directions. The effect is caused by the way light interacts with the internal crystal structure of the gem.

Are pleochroic gemstones the same as color-change gemstones?

No. Pleochroism is related to viewing angle, while color change is usually caused by different light sources, such as daylight and incandescent light. Some gems may have more than one optical effect, but the terms describe different phenomena.

Which gemstones are known for pleochroism?

Iolite, tanzanite, and andalusite are well-known examples, although pleochroism can appear in several gemstone species. The visible strength of the effect depends on the individual stone and how it is cut.

Is pleochroism a treatment?

No. Pleochroism is a natural optical property of certain crystals. Any treatment information relevant to a specific gemstone should be checked on that gem’s product details.

How should I choose a pleochroic gemstone online?

Look at the listed photos, videos if available, measurements, shape, and description. Since the appearance can vary by angle, choose the gem whose face-up color and secondary flashes best match your jewelry or collection goals.

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

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

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.

Posted By Jen in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Although the stones are smaller than I thought, I really don't think in millimeters, they are perfect. I plan to put one into a ring and the other into a necklace. Ordering was easy, contact kept me aware of how shipping was going, and delivery was sooner than expected. The quality of stones I have ordered in the past and this recent order is outstanding and stones I will be proud to wear.

Posted By Ktreva52 in June, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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.

Posted By PickyShopper in April, 2026
Source: Bizrate
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