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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

10.0 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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GemSelect Certified Store Reviews

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Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

It was fine

Posted By Na in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Although the stones are smaller than I thought, I really don't think in millimeters, they are perfect. I plan to put one into a ring and the other into a necklace. Ordering was easy, contact kept me aware of how shipping was going, and delivery was sooner than expected. The quality of stones I have ordered in the past and this recent order is outstanding and stones I will be proud to wear.

Posted By Ktreva52 in June, 2026
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

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Could not get it to work 25 times.

Posted By Dock in July, 2026
Source: Bizrate
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