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Premium Quality 31.39 Ct Natural Stunning D Block Tanzanite gemstone
- SKU
- Dimensions (mm)
- 20.9 x 13.66 x 11.93mm
- Weight (cts)
- 31.39
- Treatment
- Heat Treatment
- Shape
- Fancy
- Type
- Faceted
- Clarity
- VVS
- Colours
-
Tanzanite is the blue to violet gem variety of the mineral Zoisite. Since its relatively recent discovery in 1967, it has become a mainstream and popular gemstone, and is used extensively in jewelry. To date, Tanzanite is found only in the Arusha region of the African country of Tanzania, and it was named after its country of origin.
Tanzanite gemstones are always Heat treated. Natural Tanzanites have a more dull gray, greenish, or brownish color, and heating to above 800 degrees Fahrenheit (about 430 Celsius) will produce the deep blue to violet color. The main appeal of Tanzanite is its lovely color. Its color ranges from pure blue to purplish-blue. It is highly pleochroic, and will display different color saturation when viewed at different angles.
| Shipping provider | Shipping to Thailand | Shipping to rest of world | Combined Shipping (Thailand) | Combined Shipping (rest of the world) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
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Not available |
| FedEx |
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Not available | Not available |
- SKU
- Dimensions (mm)
- 20.9 x 13.66 x 11.93 mm
- Weight (cts)
- 31.39
- Treatment
- Heat Treatment
- Shape
- Fancy
- Type
- Faceted
- Clarity
- VVS
- Colours
-
Tanzanite is the blue to violet gem variety of the mineral Zoisite. Since its relatively recent discovery in 1967, it has become a mainstream and popular gemstone, and is used extensively in jewelry. To date, Tanzanite is found only in the Arusha region of the African country of Tanzania, and it was named after its country of origin.
Tanzanite gemstones are always Heat treated. Natural Tanzanites have a more dull gray, greenish, or brownish color, and heating to above 800 degrees Fahrenheit (about 430 Celsius) will produce the deep blue to violet color. The main appeal of Tanzanite is its lovely color. Its color ranges from pure blue to purplish-blue. It is highly pleochroic, and will display different color saturation when viewed at different angles.
| Shipping provider | Shipping to Thailand | Shipping to rest of world | Combined Shipping (Thailand) | Combined Shipping (rest of the world) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
Not available |
| FedEx |
|
|
Not available | Not available |
MMG ( Minerals Mania Gems ) One of kind fine & High Quality Gems Experienced of over decade Deal In....
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PositiveWow I can’t say enough good things. Color and cut are amazing, seller was wonderful to work with. 22 dollars in tariffs
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Positive
Paid and shipped - no feedback left after 100 days
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Positive
Paid and shipped - no feedback left after 100 days
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Positive
Very nice stone.
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Positive
Paid and shipped - no feedback left after 100 days
Audit
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Description Accurate
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Pictures Accurate
Comments
After thorough evaluation of the Verified seller's information provided, Gem Rock Auctions has found accurate and honest pictures and details for this listing. Gem Rock Auctions is committed to holding our sellers to the highest standards of integrity and transparency. As part of this policy, we only permit the sale of natural, earth mined, gemstones. Manmade, synthetic, and imitation gemstones are not permitted on Gem Rock auctions. Many Gemstones have received treatments to enhance their color and/or clarity to further emphasize their beauty and we insist treatments are disclosed. Unless accompanied by a report from an approved laboratory, all origins or treatments declared in the listing are the sellers' opinion. There are limitations to what can be determined without physically handling the listed item.
