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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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3.21ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 22.38

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3.17ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 22.10

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2.78ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 22.15

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3.11ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 21.68

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2.96ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 23.59

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2.86ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 21.43

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3.04ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 22.78

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2.57ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 20.48

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1.92ct Violet Amethyst, Trillion, VS

8 x 8 mm (calibrated)

$ 12.69

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2.68ct Violet Amethyst, Trillion, VS

9.9 x 9.6 mm

$ 14.68

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3.01ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 23.09

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3.00ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 23.01

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2.97ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 20.71

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5.78ctw Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 40.30

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2.97ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 22.25

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1.77ct Violet Amethyst, Trillion, VS

8 x 8 mm (calibrated)

$ 11.69

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2.92ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 20.36

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3.21ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 25.58

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2.73ct Violet Amethyst, Trillion, VVS

10 x 10 mm (calibrated)

$ 19.03

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3.12ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 20.51

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2.94ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 19.32

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1.64ct Violet Amethyst, Trillion, VS

8.4 x 8.2 mm

$ 10.84

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2.23ct Violet Amethyst, Trillion, VS

9 x 9 mm (calibrated)

$ 12.22

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2.65ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 20.33

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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

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I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

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Posted By LeAnn in January, 2026
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Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

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Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
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