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66.26 ct Black Nuummite Gemstone, Nuummite Gem in Round Checkerboard Shape for Sale.
Photos are of Actual Product for Sale
66.26 ct Black Nuummite Stone, Natural Nuummite in Round Checkerboard Shape for Sale Nuummite Gemstone in 28.5 mm Size for Sale, Nuummite Stone in Black with Blue Sparkle Color

66.26ct Natural Black Nuummite, Round Cut, 28.51 mm

9.7 out of 10
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Product ID: 521051
Type: Nuummite
Weight: 66.26 ct 1 gem
Size: mm calibrated
Size: 28.5 mm
Exact Size: 28.51 x 11.29 mm
Diameter x Depth
Shape: Round Checkerboard
Color: Black with Blue Sparkle
Clarity: Opaque
Treatment: Untreated
Origin: India
Content: 1 pc
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Product Description

This is a 66.26 carat natural black with blue sparkle Nuummite gem, 1 pc in round shape with an exact size of 28.51 mm x 11.29 mm . This loose Nuummite gemstone was mined in India and its clarity is Opaque. No treatment has been applied on this natural Nuummite stone

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Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

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I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
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The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.

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The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026
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I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
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