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Rare, Natural Blue Sapphire. 
Perfectly suited as an investment or collector's item.
With full ALGT certificate.

*No Reserve Price* 

Species: Natural Corundum 
Variety: Sapphire
Weight: 2.51 ct 
Color: Deep Blue 
Shape: Oval, Mixed Cut
Transparency: Transparent 
Treatment: Indications of heating present

See report for more details.
ALGT report Nr: 38632 061

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Heat treatment

No Reserve Price Sapphire  - 2.51 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Deep Blue

Gemstones

Reserve price

No reserve price

Closing date

Thursday

tomorrow

Friday

Saturday

Monday

13 January

14 January

Sunday

Budget

From

Location

Thailand

Spain

The Netherlands

Germany

Israel

India

Italy

Singapore

Portugal

France

United Kingdom

United States

Switzerland

Canary Islands

Poland

Belgium

Hong Kong

Slovak Republic

Bulgaria

Czech Republic

Austria

Sweden

Romania

Andorra

Hungary

Dimensions

Height

Width

Depth

Object

Faceted gemstone

Gemstone cabochon

Country of origin

Zambia

No origin given

Sri Lanka

Myanmar/Burma

Tanzania

Colombia

Ethiopia

Nigeria

Brazil

Africa

Madagascar

Mozambique

Afghanistan

Vietnam

Pakistan

Türkiye

Bolivia

Cambodia

Kenya

Russia

Uruguay

Asia

Stone

Emerald

Sapphire

Spinel

Tanzanite

Tourmaline

Topaz

Opal

Aquamarine

Ruby

Kunzite

Tourmaline paraiba

Peridot

Alexandrite

Tsavorite

Zircon

Garnet

Amethyst

Moonstone

Morganite

Rhodolite

Fluorite

Spodumene

Ametrine

Beryl

Sapphire padparadscha

Certification

International Gemological Institute (IGI)

International Colored Gemstone Association (ICA GemLab)

Antwerp Laboratory for Gemstone Testing (ALGT)

Instituto Gemólogico Español (IGE)

Gemological Institute of America (GIA)

Bellerophon Gemlab

Lotus Gemology

Gem Report Antwerp (GRA)

Gem research Swiss Lab (GRS)

Asian Institute of Gemological Sciences (AIGS)

Guild Gem Laboratory

International Jewellery & Gems Certifiers (IJGC)

Deutsche Stiftung Edelsteinforschung (DSEF)

Istituto Gemmologico Italiano (IGI)

Gemewizard Gemological Laboratory (GWLab)

Anchor Cert

Netherlands Gem Laboratory (NEL)

Colour

Blue

Green

Pink

Purple

Yellow

Violet

Orange

Multicolour

White

Bi-colour

Brown

Colourless

Grey

Black

Oval

Mixed cut

Cushion

Octagon

Pear

Modified brilliant cut

Brilliant cut

Step cut

Emerald cut

Faceted cut

Cabochon cut

Round

Rectangle

Heart

Triangle

Square

Modified cut

Pear shape cut

Mixed shape

Fancy

Cut cornered square

Trilliant cut

Squared emerald cut

Marquise

Clarity

Eye clean

Slight

Moderate

Loupe clean

Heavy

Severe

Treatment

No evidence of treatment

No heat treatment

Oiling

Commonly heated with no evidence of treatment

Commonly irradiated with no evidence of treatment

Clarity enhancement

Not specified in the report

Irradiation

Gemstone transparency

Transparent

Semi-transparent

Translucent

Opaque

Pearl luster

Excellent

Very good

Good

Optical effect (gemstones)

Colour change

Play of colour

Opalescence

Fluorescence

Gemstones

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No Reserve Price Sapphire - 2.51 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Deep Blue

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