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 Gemstones Grandidierite

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!

Grandidierite Weight
Grandidierite Size
Grandidierite Clarity
Grandidierite Price

Size Explained

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

1.97ct Turquoise Grandidierite, Oval, Translucent

8 x 6.8 mm

$ 431.67

View Gem

11.72ct Turquoise Grandidierite, Oval, Translucent

14.8 x 12.9 mm

$ 2,568.09

View Gem

9.51ct Turquoise Grandidierite, Oval, Translucent

14.7 x 11.1 mm

$ 273.81

View Gem

3.78ct Turquoise Grandidierite, Oval, Translucent

11.4 x 8.5 mm

$ 828.27

View Gem

5.14ct Turquoise Grandidierite, Oval, VS-SI

11.5 x 9.5 mm

$ 225.25

View Gem

4.60ct Turquoise Grandidierite, Oval, SI

12 x 10 mm (calibrated)

$ 201.59

View Gem

1.86ct Turquoise Grandidierite, Oval, Translucent

8.3 x 6.7 mm

$ 101.89

View Gem

11.10ct Turquoise Grandidierite, Oval, Translucent

14.8 x 13.3 mm

$ 364.83

View Gem

2.76ct Turquoise Grandidierite, Pear Shape, Translucent

12.1 x 7.4 mm

$ 137.45

View Gem

3.37ct Turquoise Grandidierite, Oval, Translucent

10.4 x 8.3 mm

$ 184.61

View Gem

4.83ct Turquoise Grandidierite, Oval, SI

11.6 x 9.5 mm

$ 211.67

View Gem

8.02ct Turquoise Grandidierite, Oval, Translucent

14.7 x 10.9 mm

$ 230.92

View Gem

3.56ct Turquoise Grandidierite, Oval, SI

11.5 x 8.8 mm

$ 156.02

View Gem

8.92ct Turquoise Grandidierite, Oval, Translucent

15 x 10.8 mm

$ 256.83

View Gem

6.33ct Turquoise Grandidierite, Oval, Translucent

14 x 10 mm (calibrated)

$ 1,387.03

View Gem

1.96ct Turquoise Grandidierite, Oval, Translucent

9 x 7 mm (calibrated)

$ 453.58

View Gem

8.97ct Turquoise Grandidierite, Oval, Translucent

13 x 11 mm (calibrated)

$ 1,965.51

View Gem

0.89ct Turquoise Grandidierite, Pear Shape, Translucent

6.7 x 5.9 mm

$ 48.75

View Gem

3.09ct Turquoise Grandidierite, Oval, Translucent

9.4 x 8.2 mm

$ 236.98

View Gem

19.52ct Turquoise Grandidierite, Oval, Translucent

17.3 x 14.2 mm

$ 2,138.61

View Gem

2.43ct Turquoise Grandidierite, Round, Translucent

8 mm (calibrated)

$ 453.58

View Gem

2.75ct Turquoise Grandidierite, Oval, Translucent

10.7 x 7.5 mm

$ 150.65

View Gem

1.21ct Turquoise Grandidierite, Oval, Translucent

7.1 x 6.6 mm

$ 453.58

View Gem

2.55ct Turquoise Grandidierite, Oval, Translucent

8.5 x 6.9 mm

$ 139.69

View Gem

Why Buy Grandidierite from GemSelect?

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.

Loose Grandidierite Gemstones for jewelry and Collecting

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 star ratings

I liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

Posted By Kelly in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Recomendado Totalmente Los Productos Se Entregaron A Tiempo

Posted By Alexis in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.

Posted By HVeeder in February, 2026
Source: Bizrate
Enlarged Gemstone Image