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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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Turquoise Grandidierite
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3.56ct Green Blue Tone Grandidierite, Oval, SI

11.6 x 8.7 mm

$ 187.97

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2.86ct Medium Green Blue Grandidierite, Pear Shape, Translucent

10.6 x 7.6 mm

$ 188.76

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2.85ct Pale Blue Green Grandidierite, Pear Shape, Translucent

11.2 x 8.1 mm

$ 171.00

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4.28ct Turquoise Grandidierite, Oval, VS-SI

11 x 9.5 mm

$ 225.98

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1.97ct Light Green Blue Grandidierite, Oval, Translucent

8 x 6.8 mm

$ 520.08

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2.09ct Light Bluish Green Grandidierite, Pear Shape, Translucent

8.9 x 7.8 mm

$ 137.94

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6.01ct Sea Foam Green Grandidierite, Oval, SI-I1

12.7 x 10.1 mm

$ 238.00

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2.13ct Green-Blue Grandidierite, Oval, Translucent

8.4 x 7.3 mm

$ 546.48

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0.99ct Greenish Blue Grandidierite, Pear Shape, Translucent

6.9 x 5.8 mm

$ 65.34

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3.31ct Teal Tone Grandidierite, Oval, Translucent

9.8 x 8.5 mm

$ 873.84

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12.41ct Green-Blue Grandidierite, Oval, SI-I1

15.6 x 13.3 mm

$ 491.44

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3.39ct Turquoise Grandidierite, Oval, VS-SI

10 x 8 mm (calibrated)

$ 178.99

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4.89ct Greenish Blue Grandidierite, Oval, Translucent

11.4 x 9.6 mm

$ 645.48

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6.16ct Turquoise Grandidierite, Oval, Translucent

12 x 10 mm (calibrated)

$ 813.12

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12.29ct Greenish Blue Grandidierite, Oval, Translucent

17.1 x 12.8 mm

$ 486.68

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8.02ct Bluish Green Grandidierite, Oval, Translucent

14.7 x 10.9 mm

$ 278.22

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5.25ct Blue Green Grandidierite, Oval, Translucent

13.3 x 9.9 mm

$ 485.10

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10.02ct Blue Green Grandidierite, Pear Shape, SI-I1

18.3 x 12.5 mm

$ 542.28

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1.21ct Medium Green Blue Grandidierite, Oval, Translucent

7.1 x 6.6 mm

$ 546.48

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10.79ct Greenish Blue Grandidierite, Oval, Translucent

18 x 13 mm (calibrated)

$ 1,424.28

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4.13ct Greenish Blue Grandidierite, Pear Shape, Translucent

12 x 8.6 mm

$ 272.58

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9.51ct Light Bluish Green Grandidierite, Oval, Translucent

14.7 x 11.1 mm

$ 329.89

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2.64ct Electric Blue Tone Grandidierite, Oval, Translucent

10 x 8 mm (calibrated)

$ 546.48

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8.97ct Deep Turquoise Grandidierite, Oval, Translucent

13 x 11 mm (calibrated)

$ 2,368.08

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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

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Wonderful purchase, can't wait to see the stone.

Posted By Tim in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate
Enlarged Gemstone Image