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26 April, 2023

Algt Colored Stone Identification Report # 94629688

Identification

Species .................................................................................... Natural Beryl
Variety ........................................................................... Maxixe-type Beryl

Description

Shape & Cutting Style ............................................... Pear, Mixed Cut
Measurements ............................................ 17.85 X 11.41 X 6.43 Mm
Carat Weight ............................................................................. 6.54 Carat
Color .......................................................................................................... Blue
Transparency ......................................................................... Transparent

Comments

Maxixe-type Beryl Is Always Enhanced By Irradiation To Improve Its Color.

Pear - ALGT (B)

(Maxixe - Type) Blue Beryl - 6.54 ct

Gemstones

Reserve price

No reserve price

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Closing date

Tuesday

today

tomorrow

Wednesday

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Location

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Ireland

United States

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Slovak Republic

Norway

Taiwan

Austria

Object

Faceted gemstone

Gemstone cabochon

Country of origin

No origin given

Zambia

Sri Lanka

Tanzania

Myanmar/Burma

Ethiopia

Colombia

Africa

Mozambique

Madagascar

Brazil

Pakistan

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Afghanistan

Russia

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Bolivia

Asia

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Namibia

Vietnam

Stone

Sapphire

Emerald

Tanzanite

Spinel

Opal

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Topaz

Tourmaline

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Peridot

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Citrine

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Tourmaline paraiba

Fluorite

Alexandrite

Sapphire padparadscha

Apatite

Ametrine

Spodumene

Diaspore

Certification

International Gemological Institute (IGI)

International Colored Gemstone Association (ICA GemLab)

Antwerp Laboratory for Gemstone Testing (ALGT)

Gemological Institute of America (GIA)

Instituto Gemólogico Español (IGE)

Gem Report Antwerp (GRA)

Bellerophon Gemlab

Lotus Gemology

Gem research Swiss Lab (GRS)

Asian Institute of Gemological Sciences (AIGS)

Guild Gem Laboratory

Netherlands Gem Laboratory (NEL)

Gübelin Gem Lab

Istituto Gemmologico Italiano (IGI)

Gemewizard Gemological Laboratory (GWLab)

Anchor Cert

Deutsche Stiftung Edelsteinforschung (DSEF)

Colour

Blue

Green

Pink

Violet

Purple

Yellow

Orange

White

Brown

Multicolour

Grey

Bi-colour

Colourless

Black

Oval

Mixed cut

Cushion

Pear

Octagon

Modified brilliant cut

Step cut

Brilliant cut

Faceted cut

Emerald cut

Round

Cabochon cut

Heart

Rectangle

Square

Modified cut

Triangle

Fancy

Pear shape cut

Drop

Marquise

Cut cornered square

Mixed shape

Squared emerald cut

Clarity

Eye clean

Slight

Loupe clean

Moderate

Severe

Heavy

Treatment

No evidence of treatment

No heat treatment

Commonly heated with no evidence of treatment

Heat treatment

Oiling

Not specified in the report

Commonly irradiated with no evidence of treatment

Clarity enhancement

Irradiation

Impregnation

Fracture healing / filling

Gemstone transparency

Transparent

Semi-transparent

Translucent

Semi-translucent

Opaque

Pearl luster

Excellent

Very good

Good

Fair

Optical effect (gemstones)

Colour change

Play of colour

Gemstones

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(Maxixe - Type) Blue Beryl - 6.54 ct

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