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Home Gemstones Tanzanite
4.08 ctw Blue Tanzanite Gemstones, Tanzanite Gems in Round Cabochon Shape for Sale.
Photos are of Actual Products for Sale
4.08 ctw Blue Tanzanite Stones, Natural Tanzanite in Round Cabochon Shape for Sale Tanzanite Gemstones in 7 mm (calibrated) Size for Sale, Tanzanite Stones in Silverish Blue Color

4.08ct Natural Blue Tanzanite, Round Cut, 7.03 mm

9.7 out of 10
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Product ID: 575425
Type: Tanzanite
Weight: 4.08 ct (total) 2 gems
avg. 2.04 ct
Size: 7 mm calibrated
Size: 7 mm
Exact Size: 7.03 x 4.46 mm
Diameter x Depth
Shape: Round Cabochon
Color: Silverish Blue
Clarity: Transparent
Treatment: Heated
Origin: Tanzania
Content: 2 pcs
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Product Description

These are 4.08 carat natural silverish blue Tanzanite gems, 2 pcs in round shape with an exact size of 7.03 mm x 4.46 mm (avg.). 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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Overall Rating -> 8 star ratings

Site worked well and helped me find a rock that matched what I was looking for. Well within budget and I trust it will show up, so that's definitely positive. Not much else to it. Satisfied.

Posted By Big Ricky in May, 2026
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Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
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Overall Rating -> 10 star ratings

No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!

Posted By Orphanboy in December, 2025
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