沒有保留價 - 1 pcs 白色蛋白石 - 4.99 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

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由Alberto Fidalgo精選

ALGT COLORED STONE IDENTIFICATION REPORT IDENTIFICATION Species .............................................................................................................. Natural Opal Variety ............................................................................................................... Crystal Opal DESCRIPTION Shape & Cutting Style ......................................................................... Oval, Cabochon Measurements .................................................................... 16.55 x 11.97 x 5.01 mm Carat Weight ...................................................................................................... 4.99 Carat Color ............................................................ White (Orangy) + Play of Colors (Vivid) Transparency .................................................................................................. Transparent ADDITIONAL GRADING CHARACTERISTICS Color Quality Grade .......................................................................... Fine Color Quality Optical Effect .................................................................................................. Opaliscence Origin .......................................................................................................................... Ethiopia Origin determination is an expert opinion based on microscopic examination, spectroscopic features and chemical trace element analysis. COMMENTS No indications of treatment. 30 June, 2025 79483331

編號 98918064

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沒有保留價 - 1 pcs 白色蛋白石 - 4.99 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

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ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species .............................................................................................................. Natural Opal
Variety ............................................................................................................... Crystal Opal
DESCRIPTION
Shape & Cutting Style ......................................................................... Oval, Cabochon
Measurements .................................................................... 16.55 x 11.97 x 5.01 mm
Carat Weight ...................................................................................................... 4.99 Carat
Color ............................................................ White (Orangy) + Play of Colors (Vivid)
Transparency .................................................................................................. Transparent
ADDITIONAL GRADING CHARACTERISTICS
Color Quality Grade .......................................................................... Fine Color Quality
Optical Effect .................................................................................................. Opaliscence
Origin .......................................................................................................................... Ethiopia
Origin determination is an expert opinion based on microscopic examination, spectroscopic features and
chemical trace element analysis.
COMMENTS
No indications of treatment.
30 June, 2025
79483331