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Gemstone: Natural Topaz certified by IGE: D-5954
Weight:37.55 ct
Shape: Round (excellent cut)
Clarity: Eye Clean/VVS
Size: ( 19.37 - 19.53 ) x 13.20  mm
Colour: Blue
Lustre: Superior
Hardness: 8 on Moh's scale
Treatment: commonly   irradiation
Origin: The stone comes from Brazil even though it is not specified on the certificate. 


Careful packaging and shipping with internet tracking. 
Shipping via UkrPoshta – Deliveries outside Ukraine  will take 2-3 weeks. 

Oval cut – IGE Certificate                                                                                                                    

Blue Topaz – 37.55 ct                       

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Country of origin

No origin given

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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)

Gem Report Antwerp (GRA)

Gemological Institute of America (GIA)

Lotus Gemology

Gem research Swiss Lab (GRS)

Bellerophon Gemlab

Asian Institute of Gemological Sciences (AIGS)

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Gemewizard Gemological Laboratory (GWLab)

International Jewellery & Gems Certifiers (IJGC)

Istituto Gemmologico Italiano (IGI)

CISGEM (Centro informazioni e servizi gemmologici)

Colour

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Fantasy

Clarity

Eye clean

Slight

Loupe clean

Moderate

Heavy

Severe

Not specified in lab report

Diamond weight

>6.00

Gemstone transparency

Transparent

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Pearl luster

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Treatment

No evidence of treatment

No heat treatment

Heat treatment

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Commonly heated with no evidence of treatment

Not specified in the report

Clarity enhancement

Commonly irradiated with no evidence of treatment

Irradiation

Optical effect (gemstones)

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Colour change

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Blue Topaz – 37.55 ct

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