Home  /  REPORT CHECK
GEM IDENTIFICATION REPORT (BLACK EDITION)

GENERAL INFORMATION
  • Date of Issued29 March 2024
  • ObjectOne faceted gemstone
  • Image is Approximate
  • Report Number0262454094
  • SpeciesNatural Corundum
  • VarietyNatural Sapphire
  • Weight15.58 Carats
  • EnhancementNo Indications of Heating

ORIGIN INFORMATION
  • Gemological testing revealed characteristics consistent with those of Natural Sapphire from:
  • CountrySri Lanka
  • Sri Lanka mines produce 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 sapphire producers in the world. The famous sapphire at the heart of Princess Diana's engagement ring is from Sri Lanka too.

ADDITIONAL INFORMATION
  • Measurements14.66 x 11.29 x 10.65 mm
  • ShapeOval
  • Cutting StyleModified Mixed
  • TransparencyTransparent
  • ColorStrong violetish Blue

    The hue's characteristics of this gem earns the color "Cornflower Blue"
  • ToneMedium
  • SaturationStrong
  • Refractive Index1.762 - 1.770
  • Specific Gravity4.00 ±
  • MagnificationSilk, Crystals
  • 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 harmony between the component and dominant color of this natural sapphire earns it the color "Cornflower Blue," known for its charming and calming blue. Apart from its color, it possesses good lustre that exhibits the best scintillation of the stone. Based on its untreated nature and the combination of outstanding characteristics, 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.
Disclosure Notes, Limitations & Disclaimer
SOCIALISE WITH US


Sitemap
Address

SO-22-8, Strata Office,
Menara 1 KL Eco City,
Jalan Bangsar,
Kg Haji Abdullah Hukum,
59200 Kuala Lumpur, Malaysia.

Contact
+603-2202 3833

+6012-3833 192   

info@globalgemological.com