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Lotus Gemology Report Verification

Lotus Silver  Certificate

General

Report Number:	5930-9981
Pin Number: 240645
Report Date:	6 October 2023

Identity

Identity:	Natural Sapphire
Origin:	Basalt Related
Enhancements:	H

Item Description

Item:	1 Loose Stone
Weight:	6.18 Ct
Measurements:	12.59 X 10.66 X 4.28 Mm

Daylight Color

Color:	Blue
Saturation:	Low
Tone:	Deep
Transparency:	Transparent

Cut

Shape:	Antique Cushion
Cut Type:	Faceted
Crown:	Brilliant
Pavilion:	Step

Origin: Basalt Related

Blue, Green And Yellow Sapphires Are Found With Alkali Basalts In Australia, Cambodia, Cameroon, China, Ethiopia, Laos, Madagascar, Nigeria, Rwanda, Thailand, And Vietnam. 
It Is Often Impossible To Separate These From One Another

Cushion - Lotus (Thailand)

1 pcs (Basalt Related) - [Deep Blue] Sapphire - 6.18 ct

Gemstones

Reserve price

No reserve price

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tomorrow

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Location

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Greece

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Ireland

Slovak Republic

Bulgaria

Czech Republic

Hungary

Norway

Poland

Object

Faceted gemstone

Gemstone cabochon

Country of origin

No origin given

Zambia

Sri Lanka

Myanmar/Burma

Tanzania

Ethiopia

Mozambique

Africa

Colombia

Madagascar

Brazil

Afghanistan

Russia

Nigeria

Vietnam

Pakistan

Türkiye

Bolivia

Uruguay

Cambodia

Kenya

Stone

Sapphire

Emerald

Spinel

Tanzanite

Opal

Aquamarine

Topaz

Ruby

Tourmaline

Tsavorite

Tourmaline paraiba

Garnet

Kunzite

Peridot

Amethyst

Alexandrite

Sphene

Beryl

Sapphire padparadscha

Zircon

Ametrine

Fluorite

Rhodolite

Citrine

Sphalerite

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

Bellerophon Gemlab

Gem research Swiss Lab (GRS)

Asian Institute of Gemological Sciences (AIGS)

Gem Report Antwerp (GRA)

Guild Gem Laboratory

International Jewellery & Gems Certifiers (IJGC)

Istituto Gemmologico Italiano (IGI)

American Gemological Labs (AGL)

Gübelin Gem Lab

Swiss Gemmological Institute (SSEF)

GEM-TECH Istituto Gemmologico

Anchor Cert

Netherlands Gem Laboratory (NEL)

Colour

Blue

Green

Pink

Purple

Orange

Yellow

Violet

White

Multicolour

Brown

Grey

Bi-colour

Colourless

Black

Oval

Mixed cut

Cushion

Pear

Modified brilliant cut

Faceted cut

Octagon

Brilliant cut

Step cut

Emerald cut

Cabochon cut

Round

Rectangle

Heart

Pear shape cut

Modified cut

Square

Triangle

Fancy

Marquise

Baguette cut

Fantasy

Radiant

Squared emerald cut

Clarity

Eye clean

Loupe clean

Slight

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

High pressure, High temperature (HPHT) treatment

Fracture healing / filling

Gemstone transparency

Transparent

Semi-transparent

Translucent

Semi-translucent

Opaque

Pearl luster

Excellent

Very good

Good

Gemstones

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1 pcs (Basalt Related) - [Deep Blue] Sapphire - 6.18 ct

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