Opals
Gemstones
Jewelry
Coins
You have not bid on this auction.
ICA certified Premium Quality D Block Color 7.21 Carat Tanzanite
- SKU
- Dimensions (mm)
- 12.44 x 12.41 x 7.84mm
- Weight (cts)
- 7.21
- Certificate Gem Lab
- ICA
- Treatment
- Heat Treatment
- Shape
- Pear
- Type
- Faceted
- Clarity
- VVS
- Certified Gemstones
- Yes
- 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.
Item specifics
Name: Tanzanite
Item Shape:
Place of Origin: Tanzania
Color: Deep Violet Blue
Treatment: HEATED
| Shipping provider | Shipping to Thailand | Shipping to rest of world | Combined Shipping (Thailand) | Combined Shipping (rest of the world) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
- SKU
- Dimensions (mm)
- 12.44 x 12.41 x 7.84 mm
- Weight (cts)
- 7.21
- Certificate Gem Lab
- ICA
- Treatment
- Heat Treatment
- Shape
- Pear
- Type
- Faceted
- Clarity
- VVS
- Certified Gemstones
- Yes
- 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.
Item specifics
Name: Tanzanite
Item Shape:
Place of Origin: Tanzania
Color: Deep Violet Blue
Treatment: HEATED
| Shipping provider | Shipping to Thailand | Shipping to rest of world | Combined Shipping (Thailand) | Combined Shipping (rest of the world) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
We deal in precious and semi precious gemstone.
-
Positiveperfect pictures great seller
-
Positive
perfect pictures great seller
Why are users outbidding themselves?
When a bid is placed, this is the maximum amount a person is willing to bid for the product. Our system will then automatically bid on behalf of the bidder, incrementally increasing the bid up to the maximum to maintain their position as the highest bidder.
When there is an icon indicating 'Automatic Bid', it means our system is actively placing bids for the bidder based on their maximum bid. This may appear as if bidders are outbidding themselves, but it's simply a result of the system updating the bid to reflect the bidders maximum limit.
