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Large natural black diamond, nicely cut. 
The picture is magnified to provide an honest impression of the stone's surface. 
The stone shows some minor spots of damage on the surface, which are barely visible to the naked eye. (which is normal for a stone of this rare size) 

Weight: 6.34 ct.
Measurements: 10.55mm x 8.43mm
Colour: Black 
Clarity: I1 (opaque)
Treatment: Treated to enhance colour
Origin: Africa

Shipped by registered post including tracking reference.


Round brilliant cut


Black diamond 6.34 ct


Gemstones

Reserve price

No reserve price

Buy now

Closing date

Wednesday

Thursday

today

tomorrow

29 December

Friday

Monday

28 December

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30 December

31 December

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Object

Faceted gemstone

Gemstone cabochon

Mineral cabochon

Country of origin

Myanmar/Burma

Sri Lanka

Ethiopia

Tanzania

Zambia

Brazil

Mozambique

Pakistan

Afghanistan

Madagascar

Colombia

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Material

Sapphire

Spinel

Emerald

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Tourmaline

Ruby

Topaz

Tanzanite

Imperial Topaz

Aquamarine

Garnet

Amethyst

Kunzite

Sphalerite

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Stone

Peridot

Zircon

Citrine

Morganite

Tsavorite

Beryl

Tourmaline paraiba

Fire Opal

Fluorite

Sphene

Rhodolite

Alexandrite

Certification

International Gemological Institute (IGI)

Certified gemologist report

Antwerp Laboratory for Gemstone Testing (ALGT)

No laboratory report

Instituto Gemólogico Español (IGE)

Lotus Gemology

Gemological Institute of America (GIA)

International Colored Gemstone Association (ICA GemLab)

Asian Institute of Gemological Sciences (AIGS)

Gem research Swiss Lab (GRS)

Gem Report Antwerp (GRA)

Bellerophon Gemlab

Certified Gemologist

ALGT (B)

GEM-TECH Istituto Gemmologico

IGE (Madrid)

GRS (Gem Research Swiss Lab)

Gemewizard Gemological Laboratory (GWLab)

International Jewellery & Gems Certifiers (IJGC)

Istituto Gemmologico Italiano (IGI)

Netherlands Gem Laboratory (NEL)

Gübelin Gem Lab

Lotus (Thailand)

Colour

Blue

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Grey

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Oval

Mixed cut

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Octagon

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Rectangle

Step cut

Emerald cut

Modified brilliant cut

Heart

Triangle

Square

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Mixed shape

Fantasy

Fancy

Pear shape cut

Modified cut

Drop

Trilliant cut

Clarity

Eye clean

Slight

Loupe clean

Transparent

Moderate

Heavy

Severe

Transparent (Clean)

Semi transparent

Translucent

Mineral

Spessartite

Mineral form

Cabochon

Heat treatment

No Reserve Price - 10 pcs  Blue Sapphire  - 4.05 ct - Certified gemologist report

Oiling

No Reserve Price - 8 pcs  Emerald  - 1.13 ct - Certified gemologist report

Commonly heated with no evidence of treatment

No Reserve Price - 12 pcs  Sapphire  - 1.34 ct - Certified gemologist report - Navy blue

Gemstones

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

Black diamond 6.34 ct

3453 objects

Related collections

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Gemstones

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

Black diamond 6.34 ct

3453 objects

Related collections