90,000+Happy Customers
20+Years
WorldwideShipping
Cart
Free Report Included
Worldwide Shipping
30 Day Returns
Help Center Shipping Payment and Checkout Returns Certificates Contact Us
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!

Loose Tanzanite gemstones for custom jewelry Weight
Loose Tanzanite gemstones for custom jewelry Size
Loose Tanzanite gemstones for custom jewelry Clarity
Loose Tanzanite gemstones for custom jewelry Price

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue Loose Tanzanite gemstones for custom jewelry
Brown
Golden
Gray
Green
Multicolor
Orange
Pink
Purple
Red
Turquoise
Violet Loose Tanzanite gemstones for custom jewelry
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
X
Clear All

12.03ct Blue Tanzanite, Cushion, VS

13 x 13 mm (calibrated)

$ 6,099.26

View Gem

6.83ct Blue Tanzanite, Trillion, VVS-VS

11.9 x 11.3 mm

$ 3,142.09

View Gem

3.03ct Blue Tanzanite, Marquise, VS

13.9 x 6.4 mm

$ 875.19

View Gem

6.82ct Blue Tanzanite, Oval, VVS

14 x 10 mm (calibrated)

$ 1,901.96

View Gem

7.06ct Blue Tanzanite, Cushion, VS

13 x 9 mm (calibrated)

$ 2,965.82

View Gem

10.52ct Blue Tanzanite, Oval, VVS

16 x 12 mm (calibrated)

$ 4,802.84

View Gem

1.65ct Blue Tanzanite, Round, VVS

7 mm (calibrated)

$ 406.64

View Gem

2.55ctw Violet Tanzanite, Oval, VVS-VS

6.4 x 4.3 mm

$ 209.54

View Gem

2.17ctw Blue Tanzanite, Round, Transparent

6 mm (calibrated)

$ 29.72

View Gem

1.30ct Blue Tanzanite, Trillion, VVS

7 x 7 mm (calibrated)

$ 384.46

View Gem

6.32ctw Blue Tanzanite, Oval, Transparent

10 x 8 mm (calibrated)

$ 45.58

View Gem

3.26ctw Blue Tanzanite, Pear Shape, VS

5.7 x 3.8 mm

$ 125.01

View Gem

1.64ct Blue Tanzanite, Oval, VVS

9 x 7 mm (calibrated)

$ 485.02

View Gem

2.15ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 82.45

View Gem

2.08ct Blue Tanzanite, Oval, Transparent

9 x 7 mm (calibrated)

$ 18.01

View Gem

2.68ct Blue Tanzanite, Oval, Translucent

9 x 7 mm (calibrated)

$ 23.20

View Gem

2.08ctw Blue Tanzanite, Pear Shape, VS

4.8 x 2.1 mm

$ 79.76

View Gem

3.23ct Blue Tanzanite, Oval, Translucent

10 x 7 mm (calibrated)

$ 27.95

View Gem

2.28ct Blue Tanzanite, Oval, Transparent

9 x 7 mm (calibrated)

$ 19.73

View Gem

1.83ct Blue Tanzanite, Oval, Translucent

8.3 x 6.2 mm

$ 15.84

View Gem

1.51ct Blue Tanzanite, Oval, Transparent

8 x 6 mm (calibrated)

$ 12.04

View Gem

2.35ctw Blue Tanzanite, Oval, VVS-VS

6 x 4 mm (calibrated)

$ 193.11

View Gem

2.60ct Blue Tanzanite, Oval, Transparent

9 x 7 mm (calibrated)

$ 22.50

View Gem

2.52ct Blue Tanzanite, Oval, Transparent

8.5 x 7.4 mm

$ 21.81

View Gem

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

My experience was done with ease

Posted By Barb in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I feel Gemselect is a trustworthy company to buy from

Posted By Becky in October, 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

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate
Enlarged Gemstone Image