Grandidierite Gemstones - Rare Natural & Certified Stones
Grandidierite gemstones, sourced from Madagascar and prized for their bluish-green to teal hues with striking pleochroism. Ideal for custom jewelry like engagement rings or collector's items. Hand-selected and faceted for brilliance. Shop our in-stock Grandidierite gemstones now - limited availability!
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Bi-color
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Black
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Blue
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Brown
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Gray
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Green Grandidierite
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Multicolor
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Orange
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Pink
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Purple
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Red
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Turquoise Grandidierite
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Violet
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White
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Yellow
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
6.55ct Turquoise Grandidierite, Pear Shape, Translucent
13 x 11 mm (calibrated)
$ 1,729.20
7.22ct Turquoise Grandidierite, Oval, Translucent
13.9 x 10.7 mm
$ 1,906.08
4.28ct Turquoise Grandidierite, Oval, VS-SI
11 x 9.5 mm
$ 225.98
7.32ct Turquoise Grandidierite, Oval, Translucent
13 x 11 mm (calibrated)
$ 1,932.48
8.65ct Turquoise Grandidierite, Oval, Translucent
15 x 11.8 mm
$ 300.06
22.47ct Turquoise Grandidierite, Oval, Translucent
21 x 15.5 mm
$ 2,076.23
2.76ct Turquoise Grandidierite, Pear Shape, Translucent
12.1 x 7.4 mm
$ 165.60
2.53ct Turquoise Grandidierite, Oval, Translucent
9.3 x 8 mm
$ 166.98
3.11ct Turquoise Grandidierite, Oval, Translucent
10 x 8 mm (calibrated)
$ 205.26
3.15ct Turquoise Grandidierite, Oval, SI-I1
10.9 x 9.5 mm
$ 138.60
7.09ct Turquoise Grandidierite, Pear Shape, I1
14 x 12 mm (calibrated)
$ 280.76
6.34ct Turquoise Grandidierite, Oval, Translucent
14.8 x 10.5 mm
$ 219.94
2.43ct Turquoise Grandidierite, Round, Translucent
8 mm (calibrated)
$ 546.48
2.86ct Turquoise Grandidierite, Oval, Translucent
11.4 x 7.6 mm
$ 171.60
3.53ct Turquoise Grandidierite, Oval, SI
10.9 x 9.4 mm
$ 186.38
6.16ct Turquoise Grandidierite, Oval, Translucent
12 x 10 mm (calibrated)
$ 813.12
1.40ct Turquoise Grandidierite, Oval, Translucent
7.5 x 6.3 mm
$ 84.00
8.92ct Turquoise Grandidierite, Oval, Translucent
15 x 10.8 mm
$ 309.43
2.10ct Turquoise Grandidierite, Oval, Translucent
9 x 7 mm (calibrated)
$ 60.71
6.92ct Turquoise Grandidierite, Oval, Translucent
12.6 x 10 mm
$ 1,826.88
1.21ct Turquoise Grandidierite, Oval, Translucent
7.1 x 6.6 mm
$ 546.48
2.85ct Turquoise Grandidierite, Pear Shape, Translucent
11.2 x 8.1 mm
$ 171.00
5.05ct Turquoise Grandidierite, Oval, Translucent
12 x 10 mm (calibrated)
$ 159.25
2.55ct Turquoise Grandidierite, Oval, Translucent
8.5 x 6.9 mm
$ 168.30
Why Buy Grandidierite 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
Why Choose Grandidierite Gemstones?
Elevate your collection with Grandidierite gemstones, the ultimate symbol of rarity and sophistication. Sourced only from Madagascar, these loose Grandidierite gemstones captivate with their teal to bluish-green tones and mesmerizing pleochroism - revealing emerald green, sky blue, or colorless views in one stone. Harder than aquamarine yet softer than sapphire (Mohs 7-7.5), they're ideal for natural Grandidierite gemstones in custom jewelry. Our certified selections ensure authenticity, with VS-SI clarity for everyday elegance. Invest in these elusive treasures before they're gone - perfect for engagement rings, pendants, or heirloom pieces.
Related Gemstones & Collections
Explore more rare finds like teal Grandidierite gemstones alongside complementary stones:
- Benitoite Gemstones: Ultra-rare blue neon hues for bold statements.
- Grandidierite Cabochons: Polished for opaque, chatoyant effects.
- Madagascar-Sourced Gems: Tsavorite garnet or demantoid for vibrant green synergy.
Gem Care Tips
Protect your Grandidierite gemstones with simple care: Clean gently with warm soapy water and a soft brush; avoid ultrasonics or steam. Store separately to prevent scratches. For longevity, have settings checked annually - these rare teal Grandidierite gemstones deserve expert handling.
To learn more about this rare and valuable stone, visit our Grandidierite Gemstone Information page.
FAQs
What makes Grandidierite gemstones so rare?
Grandidierite is one of the world's rarest gems, found almost exclusively in Madagascar's Transvaal deposits. Only a tiny fraction is gem-quality, making loose Grandidierite gemstones highly sought after by collectors and jewelers.
Are your Grandidierite gemstones certified?
Yes! Every natural Grandidierite gemstone we sell includes full certification from independent labs, verifying authenticity, origin, and quality (e.g., VS-SI clarity, no treatments).
How should I wear Grandidierite in jewelry?
Grandidierite gemstones shine in protective settings like bezels for rings or pendants. Their pleochroism adds dynamic color play - best in light, open designs to showcase the teal-to-blue shifts.
Can I return or exchange a Grandidierite gemstone?
Absolutely. We offer a 30-day return policy on all certified loose gemstones, ensuring satisfaction with your rare find.
What's the value of Grandidierite gemstones?
Prices for teal Grandidierite gemstones start at $50/ct for smaller stones, rising to $10,000+ for top-color, large faceted pieces - reflecting their extreme scarcity and beauty.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
Enjoy viewing the selections. Excellent product
Overall Rating -> 10
GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'
Overall Rating -> 10
Very neat and to the point
Overall Rating -> 10
All good
Overall Rating -> 9 
The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.
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.
