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Reserve Not Met
Current Bid
11
Bids
22/12/2025 05:05 pm

Top Quality 13 Ct Natural Tanzanite

11 bids
2891 views
27 watching
Details
SKU
Dimensions (mm)
16.6 x 13 x 9mm
Weight (cts)
13
Treatment
Heat Treatment
Type
Faceted
Shape
Pear
Colours
Description

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
Shipping provider Shipping to Thailand Shipping to rest of world Combined Shipping (Thailand) Combined Shipping (rest of the world)
FedEx
/ 25 days
/ 7 days
on orders with 2 items or more
on orders with 2 items or more
DHL
/ 4 days
/ 8 days
on orders with 2 items or more
on orders with 2 items or more
Express Shipping
/ 8 days
/ 21 days
on orders with 2 items or more
on orders with 2 items or more
Store
Top Quality 13 Ct Natural Tanzanite
Bangkok, Thailand
Owned by gratefulgems
Recent Feedback
  • dgirsh
    dgirsh
    Positive

    Beautiful stone. Deep color. It will make a great piece.

  • nucchem
    nucchem
    Positive

    Beautiful amazing stone NOT VVS VVS are almost internally flawless, with inclusions so small they’re nearly undetectable even under magnification. This is detectable with just the eye easily

Bids History (11)

Reserve not met

graljewelry
graljewelry
2 years ago
Purchased from this seller previously
graljewelry
graljewelry
2 years ago
Purchased from this seller previously
graljewelry
graljewelry
2 years ago
Purchased from this seller previously
mjdelpiero
mjdelpiero
2 years ago
edgar68
edgar68
2 years ago
edgar68
edgar68
2 years ago
utahmike
utahmike
2 years ago
nycgemstones
nycgemstones
3 years ago
Purchased from this seller previously
nycgemstones
nycgemstones
3 years ago
Purchased from this seller previously
studioequine
studioequine
3 years ago
edgar68
edgar68
3 years ago

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Audit

This product has been audited by a Gemstone Sheriff and they have found the following:
  • Description Accurate
  • Pictures Accurate

Comments

The Verified Seller has provided accurate and complete information for this item including weight, dimensions, and treatment.

This audit was requested 2 years ago
Last updated 2 years ago

Shipping Details

Costs:
Transit:
7 days via FedEx
Ships from:
Thailand

Payment Options

  • paypal

Overview

Listing Type : Standard
Product ID : 1850810
Estimated RRP :
Starting Bid :
Starts : 8th December 2025 05:05 pm PST
Ends : 22nd December 2025 05:05 pm PST
* All prices are in USD

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