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Ghene Menezes

17 December 2024
1830011884 AN
Identification .................................... Natural Topaz
Shape And Cutting Style ................... Pear Mixed Cut
Measurements (In Mm) ................... 28.31 x 27.61 x 18.55

Grading Results
Weight (In Carat) .............................. 102.32
Transparency .................................... Translucent
Color ................................................. Blue

Comments
Topaz is commonly treated by heat and/or
irradiation to improve its color.

Commonly heated with no evidence of treatment-  Lab report: 1830011884

1 pcs  Blue Topaz  - 102.32 ct - Gem Report Antwerp (GRA)

Gemstones

Reserve price

No reserve price

Closing date

Monday

tomorrow

Tuesday

Wednesday

Thursday

Friday

30 August

29 August

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From

Location

Thailand

India

The Netherlands

Italy

Spain

Germany

Singapore

Portugal

United Kingdom

France

Poland

United States

Belgium

Switzerland

Bulgaria

Hong Kong

Canary Islands

Slovak Republic

Greece

Israel

Austria

Japan

Ireland

Romania

Sweden

Object

Faceted gemstone

Gemstone cabochon

Raw mineral

Ring

Country of origin

No origin given

Zambia

Tanzania

Sri Lanka

Myanmar/Burma

Ethiopia

Mozambique

Madagascar

Brazil

Russia

Africa

Pakistan

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Unknown

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Stone

Sapphire

Emerald

Spinel

Tanzanite

Topaz

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Opal

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Ruby

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Fluorite

Tourmaline paraiba

Alexandrite

Rhodolite

Peridot

Ametrine

Beryl

Yellow Beryl (Heliodor)

Morganite

Sphalerite

Zircon

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)

Bellerophon Gemlab

Lotus Gemology

Asian Institute of Gemological Sciences (AIGS)

Gem research Swiss Lab (GRS)

Guild Gem Laboratory

GEM-TECH Istituto Gemmologico

Istituto Gemmologico Italiano (IGI)

Deutsche Stiftung Edelsteinforschung (DSEF)

Colour

Blue

Green

Purple

Pink

Yellow

Orange

Violet

Multicolour

Brown

White

Grey

Bi-colour

Colourless

Black

Oval

Mixed cut

Cushion

Pear

Modified brilliant cut

Step cut

Faceted cut

Octagon

Emerald cut

Brilliant cut

Cabochon cut

Round

Modified cut

Triangle

Rectangle

Heart

Square

Fancy

Pear shape cut

Marquise

Cut cornered square

Fantasy

Drop

Mixed shape

Clarity

Eye clean

Moderate

Slight

Loupe clean

Heavy

Severe

Mineral form

Slices

Treatment

No evidence of treatment

No heat treatment

Heat treatment

Commonly heated with no evidence of treatment

Oiling

Not specified in the report

Clarity enhancement

Commonly irradiated with no evidence of treatment

Irradiation

Fracture healing / filling

Gemstone transparency

Transparent

Translucent

Semi-transparent

Opaque

Semi-translucent

Optical effect (gemstones)

Colour change

Play of colour

Fluorescence

Opalescence

Asterism

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Chatoyancy

Gemstones

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1 pcs Blue Topaz - 102.32 ct - Gem Report Antwerp (GRA)

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