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12.03 ct Blue Tanzanite Gemstone, Tanzanite Gem in Cushion-Cut Shape for Sale.
Photos are of Actual Product for Sale
12.03 ct Blue Tanzanite Stone, Natural Tanzanite in Cushion-Cut Shape for Sale Tanzanite Gemstone in 13 x 13 mm (calibrated) Size for Sale, Tanzanite Stone in Intense Violet Blue Color

12.03ct Intense Violet Blue Tanzanite, Cushion Cut, 13.1x12.8 mm

9.9 out of 10
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Tanzanite Product ID: 378197
Type: Tanzanite
Tanzanite Weight: 12.03 ct Tanzanite 1 gem
Tanzanite Size: 13 x 13 mm calibrated Tanzanite
Tanzanite Size: 13.1 x 12.8 x 9.3 mm Tanzanite
Tanzanite Exact Size: 13.09 x 12.82 x 9.31 mm
Length x Width x Depth
Tanzanite Shape: Cushion-Cut Tanzanite
Tanzanite Color: Intense Violet Blue Tanzanite
Tanzanite Clarity: VS Tanzanite
Tanzanite Treatment: Heated
Tanzanite Origin: Tanzania Tanzanite
Content: 1 pc
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$
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Product Description

This is a 12.03 carat natural intense violet blue Tanzanite gem, 1 pc in cushion shape with an exact size of 13.09 x 12.82 x 9.31 mm. This loose Tanzanite gemstone was mined in Tanzania and its clarity is VS (Eye Clean). 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 -> 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
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
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

The website was very easy to use.

Posted By Garnet in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate
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Enlarged Gemstone Image