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The allure of gemstones, brought to you by {name}

Purificacion Aquino Garcia

19 October, 2023
Algt Colored Stone Identification Report # 38903879

Identification

Species .................................................................................. Natural Spinel
Variety ......................................................................................... Blue Spinel

Description

Shape & Cutting Style ....................................... Cushion, Mixed Cut
Measurements ................................................. 9.41 X 8.97 X 5.98 Mm
Carat Weight ............................................................................. 4.48 Carat
Color ........................................................................... Deep Blue (Grayish)
Transparency ......................................................................... Transparent

Origin ............................ Burma (Seller Opinion)

Comments
No Indication Of Treatment.

No evidence of treatment

1 pcs  Blue Spinel  - 4.48 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Gemstones

Reserve price

No reserve price

Closing date

Friday

tomorrow

Sunday

Saturday

Monday

28 October

Tuesday

29 October

31 October

Budget

From

Location

Thailand

India

Germany

Spain

The Netherlands

Italy

Portugal

Israel

Singapore

Hong Kong

United Kingdom

France

Greece

Belgium

Canary Islands

Poland

Switzerland

Bulgaria

United States

Japan

Türkiye

Sweden

Taiwan

Slovenia

Slovak Republic

Object

Faceted gemstone

Gemstone cabochon

Country of origin

No origin given

Zambia

Sri Lanka

Tanzania

Madagascar

Myanmar/Burma

Ethiopia

Brazil

Mozambique

Colombia

Africa

Afghanistan

Vietnam

Pakistan

Unknown

Australia

Russia

Asia

Nigeria

American Samoa

South America

Stone

Sapphire

Emerald

Tanzanite

Spinel

Aquamarine

Opal

Topaz

Tourmaline

Tsavorite

Ruby

Kunzite

Garnet

Amethyst

Fluorite

Tourmaline paraiba

Citrine

Peridot

Sapphire padparadscha

Spessartite

Alexandrite

Quartz

Fire Opal

Sphalerite

Morganite

Rhodolite

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)

Gemological Science International (GSI)

Gem Report Antwerp (GRA)

Bellerophon Gemlab

Lotus Gemology

Gem research Swiss Lab (GRS)

Asian Institute of Gemological Sciences (AIGS)

Guild Gem Laboratory

GEM-TECH Istituto Gemmologico

No laboratory report

Colour

Green

Blue

Pink

Yellow

Orange

Violet

Purple

Multicolour

Brown

White

Grey

Colourless

Bi-colour

Oval

Mixed cut

Cushion

Pear

Modified brilliant cut

Octagon

Brilliant cut

Step cut

Faceted cut

Emerald cut

Cabochon cut

Round

Heart

Modified cut

Rectangle

Square

Triangle

Marquise

Fancy

Pear shape cut

Drop

Cut cornered square

Mixed shape

Trilliant cut

Clarity

Eye clean

Slight

Moderate

Loupe clean

Heavy

Severe

Treatment

No heat treatment

Heat treatment

Commonly heated with no evidence of treatment

Oiling

Not specified in the report

Clarity enhancement

Commonly irradiated with no evidence of treatment

Irradiation

Gemstone transparency

Transparent

Semi-transparent

Translucent

Semi-translucent

Opaque

Optical effect (gemstones)

Play of colour

Colour change

Opalescence

Fluorescence

Adularescence

Asterism

Iridescence

Pearl luster

Excellent

Very good

Heat treatment-  Lab report: 841657480

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Heat treatment-  Lab report: 74788780323

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Gemstones

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

1 pcs Blue Spinel - 4.48 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

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