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Alberto Fidalgo

Sapphire Report - GIA No. 5202675154
November 1, 2019

Item Description: One loose stone 
Weight: 6.21 carats
Measurements: 11.36 x 8.36 x 5.64 mm
Comments: 
This stone exhibits a change of colour when viewed under daylight or fluorescent vs incandescent light.

Details: 
Shape: Octagonal
Cutting Style: Step Cut
Transparency: Transparent
Colour: Light Blue changing to Light Violet

Results:
Species: Natural Corundum
Variety: Sapphire 
Geographic Origin: Not Requested 
Treatment: Heated 

Will be shipped well packaged and insured with tracking number.

Private sale, no returns or  guarantee, warranty.

octagonal - GIA

1 pcs  Sapphire - 6,21 ct

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Object

Faceted gemstone

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Diamond

Country of origin

No origin given

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Africa

Unknown

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Stone

Sapphire

Emerald

Aquamarine

Tanzanite

Opal

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Ruby

Spinel

Tourmaline

Tsavorite

Kunzite

Amethyst

Zircon

Garnet

Spodumene

Peridot

Beryl

Fluorite

Citrine

Sphalerite

Heliodor

Tourmaline paraiba

Alexandrite

Morganite

Sphene

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

Grey

Colourless

Black

Oval

Mixed cut

Cushion

Pear

Octagon

Modified brilliant cut

Step cut

Emerald cut

Faceted cut

Brilliant cut

Cabochon cut

Heart

Round

Square

Rectangle

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Modified cut

Fancy

Pear shape cut

Drop

Cut cornered square

Mixed shape

Trilliant cut

Fantasy

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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1 pcs Sapphire - 6,21 ct

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