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Home Gemstones Tanzanite
1.73 ct Blue Tanzanite Gemstone, Tanzanite Gem in Round Facet Shape for Sale.
Photos are of Actual Product for Sale
1.73 ct Blue Tanzanite Stone, Natural Tanzanite in Round Facet Shape for Sale Tanzanite Gemstone in 7 mm (calibrated) Size for Sale, Tanzanite Stone in Deep Violet Blue Color
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Gem Report

1.73ct Natural Blue Tanzanite, Round Cut, 6.88 mm

9.6 out of 10
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Product ID: 717411
Type: Tanzanite
Weight: 1.73 ct 1 gem
Size: 7 mm calibrated
Size: 6.9 mm
Exact Size: 6.88 x 5.27 mm
Diameter x Depth
Shape: Round Facet
Color: Deep Violet Blue
Clarity: VVS
Treatment: Heated
Origin: Tanzania
Content: 1 pc

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$
511.64
Item is Sold
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Product Description

This is a 1.73 carat natural deep violet blue Tanzanite gem, 1 pc in round shape with an exact size of 6.88 mm x 5.27 mm . This loose Tanzanite gemstone was mined in Tanzania and its clarity is VVS (Eye Clean). This natural Tanzanite has been heated to enhance its vivid color.

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Overall Rating -> 10 star ratings

Great website, easy to navigate, and loads quickly. Have bought here before, very pleased!

Posted By SallyO in February, 2026
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Overall Rating -> 9 star ratings

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025
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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
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Overall Rating -> 9 star ratings

Fast snd easy to find what I was looking for

Posted By Bawb in May, 2026
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Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
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Overall Rating -> 10 star ratings

There is NOPLACE else I'd rather buy gemstones. Every single aspect exceeds expectations

Posted By Tabsatx in August, 2026
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