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Gemstone: Natural Aquamarine
ALGT Certificate: 15322703
Shape: Cushion mixed cut
Clarity: Transparent
Size: 17.02 x 16.76 x 11.75 mm
Color:  Light  Blue
Luster: Superior
Hardness: 8 on Moh's scale
Treatment: Unheated,Untreated
Origin: Brazil (seller's opinion)

Worldwide shipping with internet tracking number.


Cushion - ALGT (B)

Light Blue Aquamarine - 21.64 ct

Gemstones

Reserve price

No reserve price

Closing date

Thursday

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27 January

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Slovak Republic

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Object

Faceted gemstone

Gemstone cabochon

Country of origin

No origin given

Zambia

Sri Lanka

Myanmar/Burma

Tanzania

Ethiopia

Colombia

Mozambique

Africa

Brazil

Madagascar

Nigeria

Russia

Afghanistan

Pakistan

Unknown

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Stone

Sapphire

Emerald

Spinel

Tanzanite

Tourmaline

Aquamarine

Opal

Ruby

Topaz

Kunzite

Tsavorite

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Amethyst

Zircon

Fluorite

Beryl

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Rhodolite

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Mixed gemstones

Citrine

Sphene

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)

Lotus Gemology

Gem Report Antwerp (GRA)

Gem research Swiss Lab (GRS)

Bellerophon Gemlab

Asian Institute of Gemological Sciences (AIGS)

Guild Gem Laboratory

Istituto Gemmologico Italiano (IGI)

American Gemological Labs (AGL)

Colour

Green

Blue

Pink

Purple

Yellow

Violet

Orange

Brown

White

Multicolour

Bi-colour

Grey

Colourless

Black

Oval

Mixed cut

Cushion

Pear

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Step cut

Emerald cut

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Round

Rectangle

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Modified cut

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Fancy

Marquise

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Trilliant cut

Squared emerald cut

Shield

Clarity

Eye clean

Slight

Loupe clean

Moderate

Heavy

Severe

Treatment

No evidence of treatment

No heat treatment

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

Fracture healing / filling

High pressure, High temperature (HPHT) treatment

Gemstone transparency

Transparent

Translucent

Semi-transparent

Semi-translucent

Pearl luster

Excellent

Good

Very good

Fair

Optical effect (gemstones)

Colour change

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Adularescence

7 pcs  Pink, Orange Tourmaline  - 4.81 ct - International Colored Gemstone Association (ICA GemLab) - Matching Set - Fine Cut

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Light Blue Aquamarine - 21.64 ct

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