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Natural  Sapphire


ALGT Certificate: 66148848
Weight: 1.30 carat
Shape: Oval
Clarity: Transparent
Size: 6.95 x 5.13 x 3.85 mm
Colour: Light Blue
Luster: Superior
Treatment: Heated  


Remarks

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Oval - ALGT (B)

Light Blue Sapphire - 1.30 ct

Gemstones

Reserve price

No reserve price

Closing date

Saturday

tomorrow

Sunday

today

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22 January

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Object

Faceted gemstone

Gemstone cabochon

Country of origin

No origin given

Zambia

Sri Lanka

Ethiopia

Myanmar/Burma

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Madagascar

Africa

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Stone

Sapphire

Emerald

Tanzanite

Spinel

Opal

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Topaz

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Peridot

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Ametrine

Beryl

Certification

International Gemological Institute (IGI)

International Colored Gemstone Association (ICA GemLab)

Instituto Gemólogico Español (IGE)

Antwerp Laboratory for Gemstone Testing (ALGT)

Gemological Institute of America (GIA)

Lotus Gemology

Gem research Swiss Lab (GRS)

Bellerophon Gemlab

Gem Report Antwerp (GRA)

Asian Institute of Gemological Sciences (AIGS)

GEM-TECH Istituto Gemmologico

Guild Gem Laboratory

Istituto Gemmologico Italiano (IGI)

International Jewellery & Gems Certifiers (IJGC)

Gübelin Gem Lab

No laboratory report

Colour

Green

Blue

Pink

Purple

Yellow

Violet

Orange

White

Multicolour

Brown

Bi-colour

Grey

Colourless

Oval

Mixed cut

Cushion

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Heart

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Round

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Modified cut

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Pear shape cut

Marquise

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Cut cornered square

Radiant

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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

Commonly irradiated with no evidence of treatment

Clarity enhancement

Irradiation

High pressure, High temperature (HPHT) treatment

Fracture healing / filling

Heated

Gemstone transparency

Transparent

Translucent

Semi-transparent

Semi-translucent

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Pearl luster

Excellent

Good

Very good

Optical effect (gemstones)

Play of colour

Colour change

Fluorescence

Opalescence

Gemstones

This object is no longer available, but there’s still lots to explore

Light Blue Sapphire - 1.30 ct

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