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5.66 ct Blue Tanzanite Gemstone, Tanzanite Gem in Trillion Facet Shape for Sale.
Photos are of Actual Product for Sale
5.66 ct Blue Tanzanite Stone, Natural Tanzanite in Trillion Facet Shape for Sale Tanzanite Gemstone in 11.5 x 11.2 mm Size for Sale, Tanzanite Stone in Deep Blue Color

5.66ct Natural Deep Blue Tanzanite, Trillion, 11.5x11.2 mm

9.6 out of 10
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Product ID: 747182
Type: Tanzanite
Weight: 5.66 ct 1 gem
Size: mm calibrated
Size: 11.5 x 11.2 x 7.5 mm
Exact Size: 11.52 x 11.18 x 7.54 mm
Length x Width x Depth
Shape: Trillion Facet
Color: Deep Blue
Clarity: IF
Treatment: Heated
Origin: Tanzania
Content: 1 pc
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$
5,094.00
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Product Description

This is a 5.66 carat natural deep blue Tanzanite gem, 1 pc in trillion shape with an exact size of 11.52 x 11.18 x 7.54 mm. This loose Tanzanite gemstone was mined in Tanzania and its clarity is IF (Eye Clean). This natural Tanzanite has been heated to enhance its vivid color.

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GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9 star ratings

no teal sapphire

Posted By Wandering in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate
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