X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

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

4.83ct Turquoise Grandidierite, Oval, Translucent

12 x 10 mm (calibrated)

$ 167.54

View Details

8.97ct Medium Bluish Green Grandidierite, Oval, Translucent

14.6 x 12.3 mm

$ 311.16

View Details

1.83ct Electric Blue Grandidierite, Pear Shape, Translucent

10.1 x 6.2 mm

$ 120.78

View Details

2.17ct Pale Sea Foam Grandidierite, Oval, Translucent

9 x 6.4 mm

$ 75.28

View Details

3.09ct Light Blue Green Grandidierite, Oval, Translucent

9.8 x 8.8 mm

$ 203.94

View Details

3.64ct Medium Green Blue Grandidierite, Oval, Translucent

12 x 8 mm (calibrated)

$ 480.48

View Details

14.09ct Medium-Dark Green Blue Grandidierite, Oval, Translucent

15.9 x 13.2 mm

$ 3,719.76

View Details

2.98ct Light Bluish Green Grandidierite, Oval, Translucent

10 x 7.4 mm

$ 178.80

View Details

9.05ct Turquoise Grandidierite, Oval, Translucent

14 x 10.5 mm

$ 836.22

View Details

5.59ct Greenish Blue Grandidierite, Oval, SI-I1

12.2 x 10.8 mm

$ 184.47

View Details

1.49ct Turquoise Grandidierite, Pear Shape, Translucent

7.6 x 6.6 mm

$ 98.34

View Details

1.35ct Green-Blue Grandidierite, Oval, Translucent

8.5 x 6 mm

$ 46.84

View Details

7.09ct Deep Blue Green Grandidierite, Pear Shape, I1

14 x 12 mm (calibrated)

$ 280.76

View Details

6.32ct Green-Blue Grandidierite, Oval, SI-I1

12.9 x 9.8 mm

$ 250.27

View Details

9.51ct Light Bluish Green Grandidierite, Oval, Translucent

14.7 x 11.1 mm

$ 329.89

View Details

2.98ct Green Blue Tone Grandidierite, Oval, Translucent

10.3 x 8.7 mm

$ 496.80

View Details

6.41ct Medium-Dark Blue Green Grandidierite, Oval, Translucent

14 x 12 mm (calibrated)

$ 1,269.18

View Details

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

18.3 x 12.5 mm

$ 542.28

View Details

8.66ct Greenish Blue Grandidierite, Oval, I1

14.7 x 12.1 mm

$ 342.94

View Details

2.53ct Bluish Green Grandidierite, Oval, Translucent

9.3 x 8 mm

$ 166.98

View Details

9.18ct Greenish Blue Grandidierite, Oval, Translucent

15 x 10 mm (calibrated)

$ 2,423.52

View Details

9.07ct Greenish Blue Grandidierite, Pear Shape, Translucent

15.7 x 11.4 mm

$ 359.17

View Details

9.75ct Greenish Blue Grandidierite, Oval, Translucent

14.6 x 10.7 mm

$ 2,574.00

View Details

3.31ct Teal Tone Grandidierite, Oval, Translucent

9.8 x 8.5 mm

$ 873.84

View Details

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

Web site is very simple to navigate Selection is terrific

Posted By ToRa.62 in April, 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

The whole experience was just great! Satisfied with all aspects!

Posted By Online Shopper in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very good place to buy gemstones

Posted By Elansary in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was easy to use and there were a lot of good options, I was satisfied.

Posted By Brielly in January, 2026
Source: Bizrate
Enlarged Gemstone Image