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6.66 ct Turquoise Grandidierite Gemstone, Grandidierite Gem in Round Facet Shape for Sale.
Photos are of Actual Product for Sale
6.66 ct Turquoise Grandidierite Stone, Natural Grandidierite in Round Facet Shape for Sale Grandidierite Gemstone in 12 mm (calibrated) Size for Sale, Grandidierite Stone in Deep Blue Green Color

6.66ct Deep Blue Green Grandidierite, Round Cut, 12.33 mm

9.8 out of 10
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Grandidierite Product ID: 568333
Type: Grandidierite
Grandidierite Weight: 6.66 ct Grandidierite 1 gem
Grandidierite Size: 12 mm calibrated Grandidierite
Grandidierite Size: 12.3 mm Grandidierite
Grandidierite Exact Size: 12.33 x 7.47 mm
Diameter x Depth
Grandidierite Shape: Round Facet Grandidierite
Grandidierite Color: Deep Blue Green Grandidierite
Grandidierite Clarity: SI-I1 Grandidierite
Grandidierite Treatment: Untreated
Grandidierite Origin: Madagascar Grandidierite
Content: 1 pc
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$
266.40
Item is Sold
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Product Description

This is a 6.66 carat natural deep blue green Grandidierite gem, 1 pc in round shape with an exact size of 12.33 mm x 7.47 mm . This loose Grandidierite gemstone was mined in Madagascar and its clarity is SI-I1. No treatment has been applied on this natural Grandidierite stone

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GemSelect Certified Store Reviews

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Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
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Overall Rating -> 8 star ratings

I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.

Posted By Atsu in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Had a great experience and the prices are great

Posted By BuBx99 in November, 2025
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Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
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
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