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The finest objects brought to you by {name}

Alberto Fidalgo

Natural stone. 
Faceted cushion cut.
Dimensions: 7.81 x 5.54 x 4.46 mm.
Clarity: VVS2.
Colour: blue-toned violet.
Colour improved by regulated heating.

Shipped by Colissimo with tracking number, insurance, and signed for upon receipt.

Tanzania – Cushion cut.

1.71 Carat Tanzanite.

Gemstones

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Object

Faceted gemstone

Gemstone cabochon

Country of origin

No origin given

Zambia

Sri Lanka

Myanmar/Burma

Tanzania

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Stone

Sapphire

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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)

Colour

Green

Blue

Pink

Purple

Yellow

Violet

Orange

Brown

White

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Bi-colour

Grey

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Oval

Mixed cut

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Clarity

Eye clean

Slight

Loupe clean

Moderate

Severe

Heavy

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

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Pearl luster

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Optical effect (gemstones)

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1.71 Carat Tanzanite.

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