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Home Gemstones Tanzanite
6.15 ctw Blue Tanzanite Gemstones, Tanzanite Gems in Oval Cabochon Shape for Sale.
Photos are of Actual Products for Sale
6.15 ctw Blue Tanzanite Stones, Natural Tanzanite in Oval Cabochon Shape for Sale Tanzanite Gemstones in 9.3 x 7.4 mm Size for Sale, Tanzanite Stones in Medium Navy Blue Color

6.15ct Natural Blue Tanzanite, Oval Cut, 9.3x7.4 mm

9.7 out of 10
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Product ID: 701649
Type: Tanzanite
Weight: 6.15 ct (total) 2 gems
avg. 3.08 ct
Size: mm calibrated
Size: 9.3 x 7.4 x 4.7 mm
Exact Size: 9.30 x 7.41 x 4.71 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Medium Navy Blue
Clarity: Transparent
Treatment: Heated
Origin: Tanzania
Content: 2 pcs
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$
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Product Description

These are 6.15 carat natural medium navy blue Tanzanite gems, 2 pcs in oval shape with an exact size of 9.30 x 7.41 x 4.71 mm. These loose Tanzanite gemstones were mined in Tanzania and their clarity is Transparent. This natural Tanzanite has been heated to enhance its vivid color.

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GemSelect Certified Store Reviews

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Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

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

Posted By Jon in December, 2025
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Overall Rating -> 10 star ratings

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The stones are very nice.

Posted By Mvk in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very neat and to the point

Posted By Botha in March, 2026
Source: Bizrate
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Enlarged Gemstone Image