- Established in 1931, GIA is considered the world’s foremost authority in gemmology. Present in 13 countries, with 10 campuses, 4 research centres, and 9 laboratories analysing the world’s most important gems
- GIA is a nonprofit institute dedicated to continuous education and research in the field of gems and jewellery.
- GIA’s mission is to ensure public trust in gems and jewellery by upholding the highest standards of integrity, academics, science, and professionalism.
- GIA created global standards to accurately determine the quality of diamonds (4Cs – Colour, Clarity, Cut, and Carat Weight), coloured stones and pearls (7 Pearl Value Factors™ - Size, Shape, Colour, Nacre, Lustre, Surface, and Matching).
GIA gave me a fresh perspective to operate my business.
Colored Stone Grading Lab Class, Pearl Grading Lab Class
Managing Partner - Zain Precious Stone, Abu Dhabi – UAE
Participate, practice and perform. GIA Lab classes provide an ideal blend of classroom instruction and hands on learning for developing or fine-tune grading skills and techniques. You can take a lab class on its own, or as part of your GIA diploma programme requirements when earning your credential through Distance Education
- Grade diamonds as per, GIA’s grading standards for Colour, Clarity, Cut & Carat Weight
- Learn to grade diamonds with the aid of 10x loupe as per market practice
- Learn about diamond treatments for colour and clarity such as HPHT, coating, irradiation, fracture-filling, and laser drilling
- Learn and identify the common diamond look-alikes (simulants) such as synthetic moissanite, cubic zirconia, zircon, synthetic rutile, ST, GGG and YAG
- Learn about synthetic diamonds (man-made / lab-grown diamonds)
- Grade coloured stones as per GIA’s grading standards for Colour, Clarity, Cut quality
- Learn to describe a gemstone's colour in terms of hue, tone, and saturation
- Learn to judge gem quality factors
- Learn about the relationship between light and colour
- Develop your colour memory
- Understand accurate gem-testing procedures and techniques
- Study the latest gem treatments available in the market today
- Practise identification of gemstones with the aid of a 10x loupe, Microscope, Refractometer, Polariscope, Dichroscope, and Spectroscope
- Learn to identify natural gemstones, imitations, and synthetics
- Learn to determine and evaluate the quality of cultured pearls such as Akoya, Freshwater, South Sea, and Tahitian pearls
Learn GIA’s 7 Pearl Value Factors™ :
- Surface quality
- Nacre quality
- Course date and venue are subject to change without prior notice.
- * Class duration extended due to Ramadan timing.