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Natural Tanzanite ( Weight 4.52 Cts. ) Violetish Blue Colour Treasure Bkk
- SKU
- 202405088424
- Dimensions (mm)
- 13.760 x 8.220 x 5.700mm
- Weight (cts)
- 4.520
- Treatment
- Heat Treatment
- Shape
- Pear
- Type
- Faceted
- Clarity
- N/A
- Certified Gemstones
- Yes
- Colours
-
Certificate : IGS ( International Gem Switlab )
Report Date:08 May 2024
Report No:GS202405088424
Object :Loose Gemstone
Identification :NATURAL TANZANITE
Colour(Hue) :Violetish Blue
Hardness :6.5
Shape :Pear Faceted Cut
No. of Stone :1 pcs.
Measurement :13.76 mm x 8.22 mm x 5.70 mm
Weight :4.52 cts.
Origin :Tanzania
Origin Note :Gemological testing revealed characteristics of those consistent with the below origin
Comments:Heated
Additional Comment:*Antique Style*
============================================================
Tanzanite's appearance is influenced greatly by its pleochroism, which is the ability of a gemstone to show different colors when viewed in different crystal directions. Tanzanite's pleochroism was documented in scientific papers not long after its discovery. In 1969, American Mineralogist described the gem's pleochroic colors as `red-violet, deep blue, and yellow green.' Today, most gems are heat treated, which removes or reduces the yellow green or brownish pleochroic color, maximizing the blue and violet.
Top-quality tanzanite can be violetish blue --similar to a fine sapphire color --or a unique, predominately violet hue all its own. Some stones might also appear more purplish depending on how the cutter chooses to orient the fashioned gem. Both the violet and blue pleochroic colors are readily visible in a fashioned stone when it is gently rocked and tilted. This means that every tanzanite is a blend of these pleochroic colors. The exact face-up color depends on the inherent color of the original rough, its size, the pleochroic colors the cutter favors when they orient the fashioned stone, and the light the finished gem is viewed under. Cool lighting --like daylight equivalent fluorescent --will emphasize tanzanite's blue, while warm lighting --like incandescent --will make it appear more violet-to-purple.
Just like other colored gemstones, vivid strongly-colored tanzanites are highly sought after. Lighter toned pastel hues are more plentiful and affordable than vivid colors and have a subtle appeal of their own.
- SKU
- 202405088424
- Dimensions (mm)
- 13.760 x 8.220 x 5.700 mm
- Weight (cts)
- 4.520
- Treatment
- Heat Treatment
- Shape
- Pear
- Type
- Faceted
- Clarity
- N/A
- Certified Gemstones
- Yes
- Colours
-
Certificate : IGS ( International Gem Switlab )
Report Date:08 May 2024
Report No:GS202405088424
Object :Loose Gemstone
Identification :NATURAL TANZANITE
Colour(Hue) :Violetish Blue
Hardness :6.5
Shape :Pear Faceted Cut
No. of Stone :1 pcs.
Measurement :13.76 mm x 8.22 mm x 5.70 mm
Weight :4.52 cts.
Origin :Tanzania
Origin Note :Gemological testing revealed characteristics of those consistent with the below origin
Comments:Heated
Additional Comment:*Antique Style*
============================================================
Tanzanite's appearance is influenced greatly by its pleochroism, which is the ability of a gemstone to show different colors when viewed in different crystal directions. Tanzanite's pleochroism was documented in scientific papers not long after its discovery. In 1969, American Mineralogist described the gem's pleochroic colors as `red-violet, deep blue, and yellow green.' Today, most gems are heat treated, which removes or reduces the yellow green or brownish pleochroic color, maximizing the blue and violet.
Top-quality tanzanite can be violetish blue --similar to a fine sapphire color --or a unique, predominately violet hue all its own. Some stones might also appear more purplish depending on how the cutter chooses to orient the fashioned gem. Both the violet and blue pleochroic colors are readily visible in a fashioned stone when it is gently rocked and tilted. This means that every tanzanite is a blend of these pleochroic colors. The exact face-up color depends on the inherent color of the original rough, its size, the pleochroic colors the cutter favors when they orient the fashioned stone, and the light the finished gem is viewed under. Cool lighting --like daylight equivalent fluorescent --will emphasize tanzanite's blue, while warm lighting --like incandescent --will make it appear more violet-to-purple.
Just like other colored gemstones, vivid strongly-colored tanzanites are highly sought after. Lighter toned pastel hues are more plentiful and affordable than vivid colors and have a subtle appeal of their own.
| Shipping provider | Shipping to Thailand | Shipping to rest of world |
|---|---|---|
| Standard Shipping - Tracked | $9.00 / 7 days | $15.00 / 21 days |
|
Rest of the world
Standard Shipping - Tracked is discounted to $30.00 on orders with 3 or more items
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||
| FedEx | $0.00 / 0 days | $100.00 / 5 days |
| DHL | $0.00 / 0 days | $100.00 / 5 days |
| Express Shipping | $9.00 / 3 days | $70.00 / 7 days |
|
Rest of the world
Express Shipping is discounted to $70.00 on orders with 3 or more items
|
||
| Registered Shipping | $9.00 / 7 days | $15.00 / 21 days |
|
Thailand
Registered Shipping is discounted to $9.00 on orders with 2 or more items
Rest of the world
Registered Shipping is discounted to $30.00 on orders with 3 or more items
|
||
| Standard Shipping - Untracked | $9.00 / 5 days | $15.00 / 21 days |
|
Rest of the world
Standard Shipping - Untracked is discounted to $30.00 on orders with 3 or more items
|
||
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PositiveReally speedy service, highly recommend
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Positive
Some surface scratches but a very cool stone! I just need to look a little closer for surface scratches in the pictures. They are visible on the pictures so that's my own fault. I still love it and I love that you have them in the certified assay.
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Positive
Just arrived, good shipping time and quality exactly as described. Beautiful pair of emeralds
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Positive
Really satisfy with this buy
