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Home Collections Loose Tanzanite gemstones for custom jewelry

Loose Tanzanite Gemstones for Custom Jewelry - Buy Now!

Create stunning custom jewelry with our loose Tanzanite gemstones. Perfect for bespoke designs!

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8.59ctw Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 299.45

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1.39ctw Blue Tanzanite, Round, Transparent

5 mm (calibrated)

$ 12.04

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2.46ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 85.76

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1.86ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 71.32

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2.06ctw Blue Tanzanite, Pear Shape, VS

4.7 x 3.1 mm

$ 78.99

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0.31ct Blue Tanzanite, Pear Shape, VS

5.2 x 3.9 mm

$ 18.53

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1.33ct Blue Tanzanite, Oval, Transparent

8 x 6 mm (calibrated)

$ 11.51

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0.71ctw Blue Tanzanite, Pear Shape, VS

5.3 x 4.1 mm

$ 42.43

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3.21ct Blue Tanzanite, Oval, Translucent

9 x 7 mm (calibrated)

$ 27.78

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0.35ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 20.92

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1.44ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 55.22

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2.92ct Blue Tanzanite, Oval, Translucent

9 x 7 mm (calibrated)

$ 25.27

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1.48ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 56.76

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1.66ct Blue Tanzanite, Oval, VVS

9 x 7 mm (calibrated)

$ 490.93

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1.39ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.8 mm

$ 53.30

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0.64ctw Blue Tanzanite, Marquise, VS

7 x 3.5 mm (calibrated)

$ 38.25

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2.02ctw Blue Tanzanite, Oval, VS

5.6 x 3.7 mm

$ 165.98

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1.68ctw Blue Tanzanite, Pear Shape, VVS-VS

5.8 x 3.9 mm

$ 80.42

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0.35ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 20.92

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0.36ct Blue Tanzanite, Pear Shape, VS

5.1 x 3.8 mm

$ 21.51

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2.31ct Blue Tanzanite, Oval, Transparent

9 x 7 mm (calibrated)

$ 19.99

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1.76ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 67.49

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2.57ct Blue Tanzanite, Oval, Translucent

9 x 7 mm (calibrated)

$ 22.24

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6.04ctw Blue Tanzanite, Oval, Transparent

10 x 8 mm (calibrated)

$ 52.28

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Why Buy Loose Tanzanite Gemstones For Custom Jewelry from GemSelect?

What Makes Tanzanite So Special?

Tanzanite, a variety of zoisite, was discovered in 1967 and named after its sole source: Tanzania. Unlike other gems, it exhibits three colors (trichroism) - blue, purple, and hints of red - when viewed from various angles, creating dynamic depth in your custom jewelry. As the December birthstone, it symbolizes transformation and spirituality, adding personal meaning to heirloom-quality pieces.

  • Rarity: Found only in one 4-square-mile area, supplies are depleting, enhancing its investment value.
  • Color: Vibrant violet-blue tones, with AAA and AAAA grades offering the richest saturation.
  • Clarity & Cut: High clarity (eye-clean) and precision cuts maximize brilliance.
  • Hardness: 6.5-7 on the Mohs scale - durable for everyday wear with proper care, though softer than sapphire or ruby.
Loose Tanzanite Gemstones for Custom Jewelry

Why Choose Loose Tanzanite for Custom Jewelry?

Opting for loose Tanzanite gemstones for custom jewelry empowers you to craft pieces that reflect your unique style. Whether you're a designer envisioning a statement necklace or an individual seeking a custom engagement ring, these versatile stones adapt to any setting - from minimalist gold bands to elaborate platinum halos.

Benefits include:

  • Flexibility: Select exact sizes (from 0.5ct to over 20ct), shapes, and qualities to fit your design.
  • Affordability: Prices start at $30 and reach $5,000+, far more accessible than comparable sapphires while offering superior size options.
  • Ethical Sourcing: Our gems are certified natural, heat-treated for optimal color (a standard industry practice), and mined sustainably.
  • Investment Potential: As mining areas dwindle, Tanzanite's value appreciates, making your custom piece both beautiful and savvy.

Imagine a pear-shaped Tanzanite pendant that catches the light with electric blue flashes or trillion-cut earrings that sparkle with violet undertones - all customized to perfection.

Our Selection of Loose Tanzanite Gemstones

We offer a curated collection of loose Tanzanite gemstones for custom jewelry, graded for top color, clarity, and cut. All stones come with certificates of authenticity and are ready for your jeweler.

Explore shapes like baguette or heart for truly bespoke creations. Larger stones (over 5ct) are readily available, unlike many other colored gems.

Care Tips for Your Custom Tanzanite Jewelry

To keep your loose Tanzanite gemstones shining in custom settings:

  • Clean with mild soap and warm water; avoid ultrasonics or chemicals.
  • Store separately to prevent scratches.
  • Remove during heavy activities - its softness means it deserves gentle handling.

With proper care, your Tanzanite will retain its luster for generations.

Bring Your Vision to Life

Ready to transform loose Tanzanite gemstones into custom jewelry? Browse our collection today and collaborate with our expert jewelers for free design consultations. Whether it's a violet-blue engagement ring or a collection of raw stones for your portfolio, we make the process seamless and inspiring.

Shop now and own a piece of Tanzania's hidden treasure. Contact us for personalized recommendations!

Please use our Tanzanite Information Guide to learn more about this rare 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

hassle free experience.

Posted By Jhidron in October, 2025
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Enjoy every moment

Posted By Ferns in October, 2025
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Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
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Overall Rating -> 10 star ratings

I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.

Posted By Mattick in May, 2026
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Overall Rating -> 10 star ratings

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 2025
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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
Enlarged Gemstone Image