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The finest objects brought to you by {name}

Alberto Fidalgo

Tanzanita Natural
Talla. Rectangular
Peso. 2.85 ct 
Medidas. 9.86 x 6.54 x 3.61 mm 
Color. Violeta Azulado
Pureza. Inclusiones Naturales
Tratamiento. Calentado
Certificado del propio gemólogo experto Nº 028560
Referencia Interna. 251 - 61182
El envío se efectuará por agencia.
Los envíos a islas incluidas Sicilia, Corcega y Cerdeña tendrán un suplemento de 18 euros.
Gemstones sold in the CG auction are sold by vetted and trustworthy sellers chosen by CW; the card attached to the gemstones is for information purposes only and not for re-sale. For re-sale purposes the gemstone must have an accredited lab certificate from our list.

Heat treatment

Tanzanite  - 2.85 ct - Certified gemologist report

Gemstones

Reserve price

No reserve price

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From

Closing date

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Thursday

tomorrow

today

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Sunday

Location

Thailand

Spain

India

Italy

Germany

The Netherlands

Portugal

Israel

Singapore

Belgium

France

United Kingdom

Poland

Sweden

Bulgaria

Greece

Austria

Switzerland

Hong Kong

Slovak Republic

Canary Islands

Cyprus

United States

Hungary

Ireland

Object

Faceted gemstone

Gemstone cabochon

Diamond

Country of origin

No origin given

Zambia

Sri Lanka

Tanzania

Ethiopia

Myanmar/Burma

Colombia

Madagascar

Brazil

Mozambique

Africa

Pakistan

Nigeria

Türkiye

Unknown

Afghanistan

Russia

Bolivia

Vietnam

Asia

Cambodia

Stone

Sapphire

Emerald

Spinel

Tanzanite

Ruby

Opal

Tourmaline

Amethyst

Topaz

Garnet

Aquamarine

Peridot

Kunzite

Fluorite

Alexandrite

Tsavorite

Citrine

Ametrine

Tourmaline paraiba

Sapphire padparadscha

Beryl

Morganite

Sphalerite

Sphene

Rhodolite

Certification

International Gemological Institute (IGI)

Antwerp Laboratory for Gemstone Testing (ALGT)

International Colored Gemstone Association (ICA GemLab)

Instituto Gemólogico Español (IGE)

Gemological Institute of America (GIA)

Gem Report Antwerp (GRA)

Asian Institute of Gemological Sciences (AIGS)

Bellerophon Gemlab

Lotus Gemology

Gem research Swiss Lab (GRS)

Guild Gem Laboratory

GEM-TECH Istituto Gemmologico

Gemewizard Gemological Laboratory (GWLab)

Gübelin Gem Lab

No laboratory report

Colour

Green

Blue

Pink

Purple

Yellow

Violet

Orange

White

Brown

Grey

Multicolour

Bi-colour

Colourless

Oval

Mixed cut

Cushion

Pear

Faceted cut

Modified brilliant cut

Octagon

Brilliant cut

Emerald cut

Step cut

Cabochon cut

Round

Heart

Rectangle

Triangle

Modified cut

Square

Fancy

Pear shape cut

Drop

Radiant

Fantasy

Marquise

Mixed shape

Clarity

Eye clean

Slight

Moderate

Loupe clean

Heavy

Severe

Not specified in lab report

Diamond weight

>6.00

Treatment

No evidence of treatment

Oiling

No 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

Opaque

Semi-translucent

Pearl luster

Excellent

Very good

Good

Fair

Optical effect (gemstones)

Colour change

Play of colour

Opalescence

Fluorescence

Gemstones

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Tanzanite - 2.85 ct - Certified gemologist report

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