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The finest objects brought to you by {name}

Alberto Fidalgo

Number: 407952480
Date: Antwerp, March 18 , 2020
Shape: cushion mixed cut
Species: natural corundum
Variety : Sapphire *
Weight: 3.26 ct
Measurements: 10.35 x 7.69 x 4.48 mm
Colour: dark blue
Transparency: transparent
Characteristics: natural inclusion(s) pattern
Comments: *indications of heating

Cushion - IGI

Sapphire - 3.26 ct

Gemstones

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The Netherlands

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Germany

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Belgium

Singapore

Portugal

Israel

United Kingdom

France

Bulgaria

Hong Kong

Austria

Sweden

Slovak Republic

Switzerland

Canary Islands

United States

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Greece

Romania

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Object

Faceted gemstone

Gemstone cabochon

Diamond

Country of origin

No origin given

Zambia

Sri Lanka

Tanzania

Ethiopia

Myanmar/Burma

Brazil

Colombia

Madagascar

Russia

Mozambique

Africa

Pakistan

Unknown

Afghanistan

Rwanda

Türkiye

Nigeria

Australia

Cambodia

Kenya

Vietnam

Stone

Sapphire

Emerald

Aquamarine

Tanzanite

Topaz

Opal

Ruby

Spinel

Tsavorite

Tourmaline

Kunzite

Amethyst

Zircon

Garnet

Beryl

Peridot

Spodumene

Fluorite

Citrine

Sphalerite

Heliodor

Alexandrite

Sphene

Tourmaline paraiba

Morganite

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)

Lotus Gemology

Bellerophon Gemlab

Gem research Swiss Lab (GRS)

Asian Institute of Gemological Sciences (AIGS)

Guild Gem Laboratory

No laboratory report

GEM-TECH Istituto Gemmologico

Colour

Green

Blue

Pink

Yellow

Purple

Orange

Violet

Multicolour

White

Brown

Bi-colour

Colourless

Grey

Black

Oval

Mixed cut

Cushion

Pear

Octagon

Modified brilliant cut

Step cut

Emerald cut

Faceted cut

Brilliant cut

Cabochon cut

Heart

Round

Square

Triangle

Rectangle

Modified cut

Fancy

Pear shape cut

Cut cornered square

Drop

Mixed shape

Trilliant cut

Marquise

Clarity

Eye clean

Slight

Moderate

Loupe clean

Heavy

Severe

Not specified in lab report

Diamond weight

>6.00

Pearl luster

Excellent

Very good

Good

Fair

Gemstone transparency

Transparent

Semi-transparent

Translucent

Semi-translucent

Optical effect (gemstones)

Colour change

Play of colour

Fluorescence

Opalescence

Chatoyancy

Tenebrescence

Asterism

Adularescence

Iridescence

Diamond type

Natural

Treatment

No evidence of treatment

Heat treatment

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Sapphire - 3.26 ct

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