Laboratories, Nigeria

Laboratories Nigeria Companies Worldwide
  • An independent, international, non-profit organisation dedicated to the identification, treatment, and origin. Services, education, and contact information. Located in
  • Provides technical and gemological appraisal and consulting services to the trade and the public. Services, articles, and links.
  • Fine jewelry appraisals by an independent team. Services, price list, and location map. In Manchester, CT.
  • Provides diamond grading services featuring grading of the diamond cut.
  • Offers gemstone analysis software, gemological education, and gemological laboratory services. Includes articles on diamond cut studies and a gallery of virtual diamond
  • Offers mini and full diamond grading reports and appraisals for the trade. Located in Bellevue, Washington
  • Provides diamond, colored stone and pearls certification, analysis and consultations for the jewelry trade. Produces educational and promotional materials.
  • Determination of the authenticity and country of origin of a rubies and sapphires. Offers gemstone reports and inscriptions.
  • Specializes in origin of color determination for fancy colored diamonds using Raman spectrometer. Offers diamond grading reports and appraisal services.
  • Provides grading and identification of diamonds, colored stones or pearls for the industry and consumers.