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Gemstone: Blue Topaz
Quantity: 5
Total Weight: 22,66 ct.
Size: approx. 10 - 11 x 9 mm
Shape: Cushion, Oval, Round
Clarity: Transparent
Origin: Brazil

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Treatment and origin declarations are the opinion of the seller
 

Cushion, Oval, Round - No Certification

5 pcs Blue Topaz - 22.66

Gemstones

Reserve price

No reserve price

Closing date

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tomorrow

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Romania

Object

Faceted gemstone

Gemstone cabochon

Country of origin

No origin given

Zambia

Myanmar/Burma

Sri Lanka

Ethiopia

Colombia

Tanzania

Pakistan

Madagascar

Brazil

Africa

Mozambique

Türkiye

Nigeria

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Russia

Unknown

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Stone

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Emerald

Spinel

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Topaz

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Tsavorite

Tourmaline paraiba

Fluorite

Sphalerite

Zircon

Sphene

Citrine

Alexandrite

Beryl

Rhodolite

Apatite

Diaspore

Certification

International Gemological Institute (IGI)

International Colored Gemstone Association (ICA GemLab)

Antwerp Laboratory for Gemstone Testing (ALGT)

Instituto Gemólogico Español (IGE)

Gem Report Antwerp (GRA)

Gemological Institute of America (GIA)

Lotus Gemology

Gem research Swiss Lab (GRS)

Bellerophon Gemlab

Asian Institute of Gemological Sciences (AIGS)

Gübelin Gem Lab

GEM-TECH Istituto Gemmologico

Gemewizard Gemological Laboratory (GWLab)

CISGEM (Centro informazioni e servizi gemmologici)

Guild Gem Laboratory

The London Gem and Pearl Laboratory

Colour

Green

Blue

Yellow

Pink

Orange

Violet

Purple

Brown

White

Multicolour

Grey

Bi-colour

Colourless

Black

Mixed cut

Oval

Cushion

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Rectangle

Heart

Modified cut

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Fancy

Marquise

Cut cornered square

Pear shape cut

Drop

Mixed shape

Squared emerald cut

Clarity

Eye clean

Slight

Loupe clean

Moderate

Heavy

Severe

Treatment

No evidence of treatment

No heat treatment

Oiling

Heat treatment

Commonly heated with no evidence of treatment

Not specified in the report

Clarity enhancement

Commonly irradiated with no evidence of treatment

Irradiation

Fracture healing / filling

Gemstone transparency

Transparent

Translucent

Semi-transparent

Semi-translucent

Opaque

Pearl luster

Excellent

Very good

Good

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Optical effect (gemstones)

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Opalescence

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Adularescence

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5 pcs Blue Topaz - 22.66

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