Interiors & Decorations

Jewellery & Precious Stones

Watches, Pens & Lighters

Fashion

Coins & Stamps

Comics & Animation

Classic Cars, Motorcycles & Automobilia

Wine, Whisky & Spirits

Asian & Tribal Art

Trading Cards

Toys & Models

Archaeology & Natural History

Sports

Music, Movies & Cameras

Books & Historical Memorabilia

The best in gemstones and diamonds brought to you by {name}


Ghene Menezes

Blue Sapphire - 1.07 Ct. - Cushion Cut - original ALGT Report and sealed

ALGT Report Number: 24402771
Antwerp, 23.05.2025

Species: Natural Corundum
Variety: Sapphire

Shape and Cut: Square Cushion, Mixed Cut
Weight: 1.07 Carat
Measurements: 5.28 x 5.08 x 4.73 mm
Color: Blue
Transparency: Transparent
Comments: Indications of heating present and minor residue in healed fissures.

*Origin: Sri Lanka. Country of origin is an opinion offered by the seller of this item. 
This opinion is not substantiated by an official laboratory.

Delivery: Registered shipping with insurance and tracking number.

Perfectly suited as an investment, collector's item or for use in a jewellery setting.  
Sealed and original ALGT Report Num. 24402771.

Heat treatment

Blue Sapphire  - 1.07 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Gemstones

Reserve price

No reserve price

Closing date

Saturday

Friday

tomorrow

Sunday

Monday

Tuesday

7 October

Budget

From

Location

Thailand

India

The Netherlands

Spain

Italy

Germany

Portugal

France

Poland

Singapore

United States

United Kingdom

Israel

Belgium

Hong Kong

Greece

Bulgaria

Canary Islands

Switzerland

Taiwan

Austria

Denmark

Japan

Malta

Norway

Object

Faceted gemstone

Gemstone cabochon

Country of origin

No origin given

Zambia

Tanzania

Sri Lanka

Madagascar

Myanmar/Burma

Ethiopia

Brazil

Mozambique

Afghanistan

Africa

Unknown

Colombia

Pakistan

Vietnam

Türkiye

Asia

Russia

Nigeria

Australia

Bolivia

Zimbabwe

Stone

Sapphire

Emerald

Spinel

Tanzanite

Topaz

Aquamarine

Tsavorite

Ruby

Garnet

Opal

Tourmaline

Kunzite

Amethyst

Tourmaline paraiba

Fluorite

Sphalerite

Peridot

Morganite

Citrine

Rhodolite

Sapphire padparadscha

Spessartite

Alexandrite

Fire Opal

Hessonite

Certification

International Gemological Institute (IGI)

International Colored Gemstone Association (ICA GemLab)

Antwerp Laboratory for Gemstone Testing (ALGT)

Instituto Gemólogico Español (IGE)

Bellerophon Gemlab

Gemological Institute of America (GIA)

Gem Report Antwerp (GRA)

Lotus Gemology

Gem research Swiss Lab (GRS)

Asian Institute of Gemological Sciences (AIGS)

Gemological Science International (GSI)

Guild Gem Laboratory

GEM-TECH Istituto Gemmologico

Istituto Gemmologico Italiano (IGI)

American Gemological Labs (AGL)

Masterstones

Colour

Green

Blue

Pink

Orange

Purple

Yellow

Violet

Multicolour

White

Brown

Bi-colour

Grey

Colourless

Black

Oval

Mixed cut

Cushion

Pear

Faceted cut

Octagon

Step cut

Modified brilliant cut

Emerald cut

Brilliant cut

Round

Cabochon cut

Heart

Rectangle

Modified cut

Triangle

Pear shape cut

Square

Fantasy

Cut cornered square

Squared emerald cut

Fancy

Marquise

Carving cut

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

Not specified in the report

Clarity enhancement

Commonly irradiated with no evidence of treatment

Irradiation

Gemstone transparency

Transparent

Semi-transparent

Translucent

Opaque

Semi-translucent

Optical effect (gemstones)

Colour change

Play of colour

Opalescence

Fluorescence

Adularescence

Chatoyancy

Iridescence

Pearl luster

Very good

Good

Excellent

Gemstones

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

Blue Sapphire - 1.07 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Popular in Gemstones

1729 objects

Related collections