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RTBF-2347179 RTBF-2347179

01 September, 2023

Algt Colored Stone Identification Report # 23266419

Identification

Species ................................................................................ Natural Quartz
Variety ............................................................................................ Amethyst

Description

Shape & Cutting Style ..................................... Marquise, Mixed Cut
Measurements ......................................... 24.72 X 14.42 X 11.05 Mm
Carat Weight ........................................................................... 20.12 Carat
Color ...................................................................................................... Purple
Transparency ......................................................................... Transparent

Comments

No Indication Of Treatment.

High precision cut - ALGT (B)

1 pcs Purple Amethyst - 20.12 ct

Gemstones

Reserve price

No reserve price

Buy now

Closing date

Friday

Thursday

Sunday

tomorrow

Saturday

Monday

9 October

8 October

Budget

From

Location

Spain

Germany

Thailand

France

The Netherlands

Portugal

Italy

Bulgaria

Singapore

United Kingdom

Belgium

Poland

Israel

Hong Kong

Switzerland

Austria

Taiwan

Sweden

United States

India

Slovak Republic

Greece

Latvia

Malta

Czech Republic

Object

Faceted gemstone

Gemstone cabochon

Country of origin

Sri Lanka

Tanzania

Brazil

Zambia

Ethiopia

Mozambique

Myanmar/Burma

Pakistan

Madagascar

Australia

Afghanistan

Colombia

Congo

Africa

Mexico

Cambodia

Kenya

No origin given

Bolivia

Türkiye

Mali

Namibia

Russia

Material

Tanzanite

Spinel

Sapphire

Tourmaline

Emerald

Aquamarine

Beryl

Garnet

Topaz

Citrine

Fire Opal

Morganite

Ruby

Heliodore

Kunzite

Tsavorite

Stone

Opal

Amethyst

Peridot

Fluorite

Zircon

Tourmaline paraiba

Rhodolite

Sapphire padparadscha

Ametrine

Hessonite

Certification

Antwerp Laboratory for Gemstone Testing (ALGT)

International Gemological Institute (IGI)

Certified gemologist report

No laboratory report

Instituto Gemólogico Español (IGE)

Gemological Institute of America (GIA)

Asian Institute of Gemological Sciences (AIGS)

Lotus Gemology

Bellerophon Gemlab

ALGT (B)

Certified Gemologist

Gem research Swiss Lab (GRS)

Gem Report Antwerp (GRA)

IGE (Madrid)

AIGS (Thailand)

International Jewellery & Gems Certifiers (IJGC)

GEM-TECH Istituto Gemmologico

Anchor Cert

Netherlands Gem Laboratory (NEL)

Lotus (Thailand)

Colour

Blue

Green

Pink

Purple

Orange

Yellow

Violet

Multicolour

Bi-colour

Brown

Colourless

Grey

White

Black

Oval

Mixed cut

Cushion

Pear

Faceted cut

Round

Octagon

Brilliant cut

Cabochon cut

Emerald cut

Step cut

Modified brilliant cut

Heart

Triangle

Square

Rectangle

Marquise

Fancy

Pear shape cut

Modified cut

Trilliant cut

Rectangular

Cut cornered square

Fantasy

Clarity

Eye clean

Loupe clean

Slight

Transparent

Moderate

Heavy

Transparent (Clean)

Translucent

Opaque

No heat treatment

No Reserve Price - 1 pcs  Red Ruby  - 0.69 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Deep Red Ruby

Sri Lanka - No heat treatment

No Reserve Price Blue Sapphire  - 5.05 ct - Instituto Gemólogico Español (IGE) - Ceylon

No Reserve Price Violet Sapphire  - 1.46 ct - International Gemological Institute (IGI) - NATURAL SAPPHIRE

Heat treatment

No Reserve Price Green Sapphire  - 1.61 ct - International Gemological Institute (IGI) - NATURAL SAPPHIRE

Sapphire  - 2.44 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

No evidence of treatment

Aquamarine  - 7,09 ct - Instituto Gemólogico Español (IGE)

Sapphire  - 1.21 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

No Reserve Price - 25 pcs  Aquamarine  - 8.03 ct - No laboratory report

No Reserve Price Sapphire  - 1.09 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Sapphire  - 1.17 ct - Instituto Gemólogico Español (IGE)

Green Zircon  - 4.40 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Gemstones

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

1 pcs Purple Amethyst - 20.12 ct

2002 objects

Related collections

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Gemstones

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

1 pcs Purple Amethyst - 20.12 ct

2002 objects

Related collections