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GEM IDENTIFICATION REPORT (BLACK EDITION)

GENERAL INFORMATION
  • Date of Issued23 November 2024
  • ObjectOne faceted gemstone
  • Image is Approximate
  • Report Number7207155251
  • SpeciesNatural Corundum
  • VarietyNatural Fancy Sapphire
  • Weight16.76 Carats
  • EnhancementIndications of heating

ORIGIN INFORMATION
  • Gemological testing revealed characteristics consistent with those of Natural Fancy Sapphire from:
  • CountrySri Lanka
  • Sri Lanka mines produce fancy sapphire since ancient times, it has been well established by 1292, when Marco Polo first landed the Gem Island. To this day, it is still one of the most prominent fancy sapphire producers in the world.

ADDITIONAL INFORMATION
  • Measurements17.37 x 13.18 x 9.36 mm
  • ShapeOval
  • Cutting StyleMixed
  • TransparencyTransparent
  • ColorVivid Yellow
  • ToneMedium
  • SaturationVivid
  • Refractive Index1.762 - 1.770
  • Specific Gravity4.00 ±
  • MagnificationZoned clouds, Frosty and melted crystals
  • EnhancementIndications of heating
  • CommentsAny statements on origin is an expert opinion based on a collection of observations and analytical data.

IMPORTANT INFORMATION
  • Tested withUV-Vis-NIR Spectrometer
  • As the general colorless corundum formula is Aluminium Oxide, the presence of trace elements will provide its color. In this stone the presence of yellow color is due to the presence of iron, it is proven by Fe-related absorption features at 450nm.
  • Special Mention
  • Natural fancy sapphire of 16.76 carats from Sri Lanka possesses vivid saturation is very rare. In addition to its exceptional color, the stone exhibits beautiful brilliance due to its amazing lustre. Given these quality traits, the gemstone is deserving of a dedicated mention.
  • Examined by Global Gemological Laboratory team of experienced gemologists (GG from GIA, AG from AIGS)
Tested and examined by GlobalGem Group of qualified Gemologists comprising members from GIA (GG) of America, Gem-A (FGA) of United Kingdom and AIGS(AG) of Asia.

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