Natural gemstone • Treatment disclosed • Secure checkout
Zehra Gems
8.4x6.4mm Natural Bi Color Tanzanite Zoisite Oval Cut Unheated Loose Gemstone
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A rare bi-color tanzanite — showing brown and purple tones in one natural, unheated stone. Bi-color tanzanites like this are uncommon since most are heat-treated to a uniform blue-violet.
Gemstone Details
• Gemstone: Natural Tanzanite (Zoisite)
• Shape & Cut: Oval
• Size: 8.4x6.4mm
• Weight: 1.80 carats
• Quantity: 1 stone
• Color: Fancy brown-purple bi-color
• Origin: Tanzania
• Treatment: Unheated (no heat)
• Creation Method: 100% natural, mined gemstone
Why This Stone Stands Out
Unheated tanzanite is rare in the trade, and a bi-color example like this is a genuine collector's piece.
Why Buy From Zehra Gems
Every gemstone is 100% natural with transparent treatment disclosure — no lab-created or synthetic stones. Trusted by jewelry makers and designers worldwide. Ships securely and insured.
Ideal for a ring center or pendant, and a distinctive gift for December birthdays or Father's Day.
Gemstone FAQs
Gemstone FAQs
Is this gemstone natural or treated?
Treatment is stated in the product description above.
Where does this gemstone originate from?
Origin is stated in the product description above.
Will the color look the same in person as in photos?
Screen displays vary, and gemstone color can shift slightly under different lighting.
Can this stone be set into a custom jewelry design?
Yes, based on the shape and cut listed above, most of our loose gemstones are suitable for custom jewelry settings.
What is your return policy?
See our Refund Policy for full details.
Questions about this gemstone?
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