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GEM IDENTIFICATION REPORT (BLACK EDITION)

GENERAL INFORMATION
  • Date of Issued14 March 2024
  • ObjectOne faceted gemstone
  • Image is Approximate
  • Report Number0258662283
  • SpeciesNatural Corundum
  • VarietyNatural Sapphire
  • Weight42.63 Carats
  • EnhancementNo Indications of Heating

ORIGIN INFORMATION
  • Gemological testing revealed characteristics consistent with those of Natural Sapphire from:
  • CountryBurma (Myanmar)
  • Sapphires from Burma generally have darker tone so high-quality stones are very rare, some of the world's finest sapphires are actually mined in this country, like the famous “The Ultimate Mogok Blue Treasure” which is listed in the Guinness World Records.

ADDITIONAL INFORMATION
  • Measurements20.49 x 17.94 x 11.51 mm
  • ShapeRectangular Cushion
  • Cutting StyleModified Mixed
  • TransparencyTransparent
  • ColorStrong violetish Blue

    The hue's characteristics of this gem earns the color "Cornflower Blue"
  • ToneMedium
  • SaturationMedium - Strong
  • Refractive Index1.762 - 1.770
  • Specific Gravity4.00 ±
  • MagnificationBlack crystals, Minute particles, Needles
  • EnhancementNo Indications 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
  • The UV-Vis-NIR spectrum of this sapphire shows iron-related absorption at 388nm and 450nm. And the absence of broad band at 880nm helps to distinguish the environment this sapphire was formed in.
  • Special Mention
  • The 42.63 carats natural sapphire, free from any treatment, is a true rarity. The harmonious blend of component and dominant colors of this stone, earns the highly appreciated "Cornflower Blue". Apart from its captivating color, the stone possesses great lustre that enhances its scintillation. With its untreated nature and exceptional quality traits, this stone deserves our special mention and appreciation.
  • 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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