Tansanit-9.502-GLA49785-6.700" title="Tansanit-9.502-GLA49785-6.700" sizes="(max-width: 600px) 100vw, 600px" srcset="https://thenaturalgem.com/wp-content/uploads/2020/09/tansanit-9.502-gla49785-6.700-1-100x100.jpg 100w, https://thenaturalgem.com/wp-content/uploads/2020/09/tansanit-9.502-gla49785-6.700-1-300x300.jpg 300w">
TAN-9.502-Oval-GLA49785-6.700_000001" title="TAN-9.502-Oval-GLA49785-6.700_000001" sizes="(max-width: 600px) 100vw, 600px" srcset="https://thenaturalgem.com/wp-content/uploads/2020/09/tan-9.502-oval-gla49785-6.700_000001-100x100.jpg 100w, https://thenaturalgem.com/wp-content/uploads/2020/09/tan-9.502-oval-gla49785-6.700_000001-300x300.jpg 300w">

Tanzanite

Item Number: TAN-2020-74

€6.700,00

incl. VAT

In stock

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Details

Price:

6.700,00 €

Weight:

9,502 ct.

Color:

Blue

Shape:

Oval

Dimensions:

14,12 mm x 10,67 mm x 7,84 mm

Color Quality:

good (IV)

Purity:

Eye clean (A)

Origin:

Tanzania

Treatment:

not detectable

Certificate:

GLA49785

Item Number:

TAN-2020-74

facts

properties of tanzanite

Belongs mineralogically to zoisite
Hardness grade 6,5-7
Chemical formula: Ca2Al3(SiO4)3OH
Includes the colors blue, violet and brown
By heating it develops its famous blue color
Density from 3,29 – 3,4

origin

Tansania

worth knowing

Only place of discovery: Tanzania
Tanzania locality was discovered in 1967
Was mineralogically known as “Zoisite” for a long time
Became known worldwide through the movie “Titanic”

Tanzanite as an investment

Rare, strongly increasing in value
finds become less, because there is only 1 mining area
rather bigger stones are preferable
Larger stones have higher increase in value
stones with deep blue color are to be preferred