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10.79 ct Turquoise Grandidierite Gemstone, Grandidierite Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
10.79 ct Turquoise Grandidierite Stone, Natural Grandidierite in Oval Cabochon Shape for Sale Grandidierite Gemstone in 18 x 13 mm (calibrated) Size for Sale, Grandidierite Stone in Greenish Blue Color

10.79ct Turquoise Grandidierite, Oval Cut, 17.4x12.5 mm

9.7 out of 10
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Product ID: 471788
Type: Grandidierite
Weight: 10.79 ct 1 gem
Size: 18 x 13 mm calibrated
Size: 17.4 x 12.5 x 6.5 mm
Exact Size: 17.38 x 12.49 x 6.46 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Greenish Blue
Clarity: Translucent
Treatment: Untreated
Origin: Madagascar
Content: 1 pc
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$
1,424.28
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Product Description

This is a 10.79 carat natural greenish blue Grandidierite gem, 1 pc in oval shape with an exact size of 17.38 x 12.49 x 6.46 mm. This loose Grandidierite gemstone was mined in Madagascar and its clarity is Translucent. No treatment has been applied on this natural Grandidierite stone

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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 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

Had a great experience and the prices are great

Posted By BuBx99 in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a rock that met my need. Bought it!

Posted By Skot in May, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate
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Enlarged Gemstone Image