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Home Gemstones Gemstones By Shape Trillion Amethyst

Natural Trillion Amethyst Gemstones

Browse natural trillion amethyst gemstones in precise triangle cuts, perfect for modern and custom jewelry designs.

Trillion Amethyst Weight
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Trillion Amethyst Price

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2.71ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 18.89

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2.78ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 19.38

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1.56ct Violet Amethyst, Trillion, VS

8 x 8 mm (calibrated)

$ 10.31

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5.33ctw Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 42.47

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3.01ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 16.49

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2.50ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 19.17

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3.03ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 22.71

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2.81ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 15.40

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2.08ct Violet Amethyst, Trillion, VS

9 x 9 mm (calibrated)

$ 15.95

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2.77ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 20.77

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2.57ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 17.92

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2.93ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 23.35

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2.82ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 22.47

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2.78ct Violet Amethyst, Trillion, VS-SI

10 x 10 mm (calibrated)

$ 15.23

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2.96ctw Violet Amethyst, Trillion, VS

7 x 6.1 mm

$ 19.46

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2.68ct Violet Amethyst, Trillion, VS

9.9 x 9.6 mm

$ 14.68

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2.25ct Violet Amethyst, Trillion, VVS-VS

9 x 9 mm (calibrated)

$ 12.33

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2.41ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 18.06

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2.87ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 20.01

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3.10ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 24.70

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3.20ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 25.50

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2.77ct Violet Amethyst, Trillion, VVS

10 x 10 mm (calibrated)

$ 19.31

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3.11ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 21.68

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5.15ctw Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 41.04

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Why Buy Trillion Amethyst from GemSelect?

Precision-Cut Trillion Amethyst

Our trillion amethyst gemstones are expertly cut into sharp, symmetrical triangle shapes that maximize brilliance and color. These natural stones display rich purple hues and clean facet alignment for outstanding sparkle.

Buy Trillion Amethyst Online

At GemSelect, you can shop trillion cut amethyst gemstones with detailed photos, exact dimensions, and full specifications. Every stone is in stock and ready for secure worldwide shipping.

Trillion Cut Amethyst Gemstones for Jewelry

Triangle Amethyst for Modern Jewelry

The trillion shape is a popular choice for contemporary rings, pendants, and earrings. Its three-sided design creates a bold geometric look while maintaining excellent light performance.

Side Stones & Accent Settings

Trillion amethyst gemstones are often used as side stones in engagement rings or as matching pairs for earrings. Their angular shape complements round, oval, and emerald center stones beautifully.

Natural & Treated Amethyst

All trillion amethyst stones are natural. Any common treatments, such as heat treatment to enhance color, are fully disclosed for complete transparency.

Calibrated Trillion Sizes

We offer both calibrated and free-size trillion cut amethyst, making them suitable for standard jewelry mountings as well as custom-made settings.

February Birthstone

Amethyst is the February birthstone and is associated with clarity and balance. A trillion amethyst makes a unique and meaningful gift for February birthdays.

Learn more about gemstone properties, care, and history on our Amethyst Information Page.

FAQs

What is a trillion cut amethyst?

A trillion cut amethyst is a gemstone shaped into a triangular form with three equal sides. The cut enhances brilliance and offers a modern geometric appearance.

Are your trillion amethyst gemstones natural?

Yes, all our amethyst gemstones are natural. Any treatments, such as heat enhancement, are clearly disclosed in the product details.

Is trillion amethyst suitable for rings?

Yes, with a Mohs hardness of 7, amethyst is durable enough for rings when properly set. Protective prong or bezel settings are recommended for the pointed corners.

Do you offer matching trillion amethyst pairs?

Yes, matching pairs are available and are ideal for earrings or balanced jewelry designs.

What sizes are available in trillion amethyst?

We stock a wide range of sizes, including calibrated measurements suitable for standard mountings and larger stones for statement pieces.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9 star ratings

The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.

Posted By Guero in March, 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

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very food

Posted By Keeto in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate
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