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5.78 ctw Blue Tanzanite Gemstones, Tanzanite Gems in Oval Cabochon Shape for Sale.
Photos are of Actual Products for Sale
5.78 ctw Blue Tanzanite Stones, Natural Tanzanite in Oval Cabochon Shape for Sale Tanzanite Gemstones in 10 x 8 mm (calibrated) Size for Sale, Tanzanite Stones in Light Purplish Blue Color

5.78ct Natural Blue Tanzanite, Oval Cut, 10.2x8.1 mm

9.6 out of 10
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Product ID: 701537
Type: Tanzanite
Weight: 5.78 ct (total) 2 gems
avg. 2.89 ct
Size: 10 x 8 mm calibrated
Size: 10.2 x 8.1 x 3.9 mm
Exact Size: 10.16 x 8.05 x 3.94 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Light Purplish Blue
Clarity: Transparent
Treatment: Heated
Origin: Tanzania
Content: 2 pcs
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$
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Product Description

These are 5.78 carat natural light purplish blue Tanzanite gems, 2 pcs in oval shape with an exact size of 10.16 x 8.05 x 3.94 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

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate

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
Source: Bizrate
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