Calibrated Tourmaline Gemstones
Browse natural calibrated tourmaline gemstones in precise sizes, perfect for professional jewelry settings and custom designs.
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Bi-color Calibrated Tourmaline
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Black Calibrated Tourmaline
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Blue Calibrated Tourmaline
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Brown Calibrated Tourmaline
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Golden Calibrated Tourmaline
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Gray Calibrated Tourmaline
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Green Calibrated Tourmaline
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Multicolor Calibrated Tourmaline
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Orange Calibrated Tourmaline
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Pink Calibrated Tourmaline
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Purple Calibrated Tourmaline
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Red Calibrated Tourmaline
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Turquoise Calibrated Tourmaline
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Violet
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White
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Yellow Calibrated Tourmaline
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
1.54ct Green Tourmaline, Oval, VVS
8 x 6 mm (calibrated)
$ 178.95
0.70ct Pink Tourmaline, Round, Transparent
5.5 mm (calibrated)
$ 27.89
1.32ct Pink Tourmaline, Round, Transparent
7 mm (calibrated)
$ 21.87
8.05ct Black Tourmaline, Oval, Opaque
13 x 11 mm (calibrated)
$ 40.09
9.17ct Black Tourmaline, Emerald Cut, Opaque
11 x 11 mm (calibrated)
$ 45.67
1.29ct Pink Tourmaline, Oval, Transparent
8 x 6 mm (calibrated)
$ 22.11
1.13ct Pink Tourmaline, Round, Transparent
6.5 mm (calibrated)
$ 18.72
1.64ct Brown Tourmaline, Oval, Transparent
8 x 6 mm (calibrated)
$ 32.67
0.62ct Pink Tourmaline, Round, Transparent
5 mm (calibrated)
$ 20.58
0.61ct Pink Tourmaline, Round, Transparent
5 mm (calibrated)
$ 24.30
1.60ct Pink Tourmaline, Oval, Transparent
8 x 6 mm (calibrated)
$ 27.43
3.04ctw Green Tourmaline, Oval, Transparent
8 x 6 mm (calibrated)
$ 50.39
2.13ct Red Tourmaline, Cushion, Transparent
6 x 6 mm (calibrated)
$ 24.93
1.51ct Pink Tourmaline, Round, Transparent
7 mm (calibrated)
$ 25.89
0.97ct Yellow Tourmaline, Round, Transparent
6 mm (calibrated)
$ 16.28
1.21ct Pink Tourmaline, Round, Transparent
7 mm (calibrated)
$ 20.73
1.50ct Yellow Tourmaline, Oval, Transparent
8 x 6 mm (calibrated)
$ 44.82
1.60ct Yellow Tourmaline, Oval, VVS-VS
8 x 6 mm (calibrated)
$ 185.92
0.93ct Yellow Tourmaline, Oval, VVS-VS
7 x 5 mm (calibrated)
$ 37.05
0.91ct Pink Tourmaline, Round, Transparent
6 mm (calibrated)
$ 15.08
2.47ctw Pink Tourmaline, Round, Transparent
6.5 mm (calibrated)
$ 42.34
1.43ct Pink Tourmaline, Pear Shape, VS
7 x 7 mm (calibrated)
$ 199.40
1.61ct Green Tourmaline, Round, Transparent
7 mm (calibrated)
$ 27.60
1.79ct Yellow Tourmaline, Oval, Transparent
8 x 6 mm (calibrated)
$ 32.68
Why Buy Calibrated Tourmaline from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
Natural Calibrated Tourmaline Gemstones
Our natural calibrated tourmaline gemstones are carefully selected for color, clarity, and precision sizing, making them ideal for jewelry designs that require consistency and accuracy.
Loose Calibrated Tourmaline Online
Shop loose calibrated tourmaline online at GemSelect with confidence. Choose from a wide variety of colors, shapes, and exact measurements suitable for standard jewelry settings.
Tourmaline for Jewelry Mountings
Calibrated tourmaline stones are cut to fit common jewelry mountings, helping jewelers save time and achieve professional, balanced designs for rings, earrings, and pendants.
Multi-Color Tourmaline Selection
Tourmaline is famous for its wide color range, from green and pink to blue and bi-color varieties. Calibrated sizing lets you mix colors easily while keeping design symmetry.
Faceted Calibrated Tourmaline
Faceted calibrated tourmaline offers excellent brilliance and sparkle. Popular shapes include oval, round, cushion, and pear cuts that work well in ready-made settings.
Matching Calibrated Tourmaline Pairs
Matching calibrated pairs are perfect for earrings or symmetrical jewelry projects, ensuring both stones share similar size, shape, and visual balance.
Wholesale Calibrated Tourmaline Stones
Buy wholesale calibrated tourmaline gemstones for jewelry production or retail collections. Consistent sizing makes bulk purchasing efficient and reliable for manufacturers.
Durability and Everyday Wear
Tourmaline has a Mohs hardness of 7 to 7.5, making it suitable for everyday jewelry when properly set and cared for, offering both beauty and practicality.
Precise Sizes for Easy Setting
Calibrated tourmaline gemstones are available in standard sizes such as 5 mm, 6 mm, or 8 x 6 mm, helping jewelers fit stones quickly into pre-made mountings.
Learn more about the history, varieties, and properties of tourmaline on our Tourmaline Information Page.
FAQs
What does calibrated tourmaline mean?
Calibrated tourmaline refers to gemstones cut to precise standard dimensions so they fit common jewelry settings without custom modification.
Are GemSelect calibrated tourmaline gemstones natural?
Yes, all tourmaline gemstones are natural, and any treatments are clearly disclosed to ensure full transparency for buyers.
Why choose calibrated gemstones for jewelry making?
Calibrated gemstones simplify jewelry production because they fit standardized mountings, reducing labor time and improving consistency across designs.
What colors are available in calibrated tourmaline?
Tourmaline comes in many colors including green, pink, blue, yellow, and bi-color varieties, offering flexible design possibilities.
Can I buy calibrated tourmaline in matching pairs?
Yes, matching pairs are available and are ideal for earrings or designs requiring symmetry in size, shape, and color.
What sizes are common for calibrated tourmaline?
Common sizes include rounds like 4 mm to 7 mm and ovals such as 7 x 5 mm or 8 x 6 mm, making them easy to use in standard settings.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
I have made many purchases from GemSelect over the years, and I have a beautiful collection of jewelry as a result. My purchases have always been exactly as described, and I have enjoyed doing business with you.
Overall Rating -> 10
overall great
Overall Rating -> 10
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.
Overall Rating -> 10
I purchased 4 gemstones in different sizes to be able to make a family ring for my granddaughter. I got exactly what I saw and they are absolutely beautiful! Shipping was quick compared to other gem stores I have dealt with! I will definitely order more stones from your company, as I am a collector and have several stones. You are my new go to company in the future
Overall Rating -> 10
Excellent options
Overall Rating -> 10
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.
