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ABOUT GIA

  • 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 grading laboratories grading the world’s most important gemstones.
  • GIA is a nonprofit institution dedicated to continuous education and research in the field of gems and jewellery.
  • GIA’s mission is to ensure public trust in gem 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).

ALUMNI SPEAK

gcs

GRADUATE COLORED STONES PROGRAM

GRADUATE-DIAMONDS-PROGRAM-GIRL

Identify a stunning variety of gemstones. Evaluate them by quality, rarity, and colour. Study the most effective grading, buying, and selling techniques. A dazzling spectrum of opportunities awaits those who understand the coloured stone marketplace. .

WHAT YOU'LL LEARN

  • Identify 60 species of common and unusual gemstones including ruby, sapphire, emerald, demantoid garnet, and benitoite, and how illumination techniques can facilitate the identification process
  • Detect latest treatments such as opal doublets, opal triplets, heat treated rubies, beryllium diffused sapphires and rubies, lattice diffused sapphires and many other treatments
  • Detect synthetics, rubies, sapphires, emeralds and many other gemstones by identification of inclusions and use of common gemmological instruments
  • Gain experience on working of common gemmological instruments such as microscope, 10x loupe, polariscope, refractometer, spectroscope (hand-held and tabletop), dichroscope, Chelsea filter and ultraviolet lamp (long wave & short wave)
  • Gain additional knowledge of high-tech equipment used in renowned gem testing laboratories such as FTIR, Raman Spectroscopy, and others

POSSIBLE CAREER PATHS

  • Coloured Stone Manufacturers
  • Jewellery Manufacturer
  • Loose Diamond / Coloured Stone Buyers and Sellers
  • Jewellery Retailers and Wholesalers
  • Lab and Research Professionals
  • Any individual aspiring for a career in the gem and jewellery industry

TOPICS COVERED

Here are some of the topics covered in the Graduate Colored Stones Diploma Program.

COLORED STONES & COLORED STONE GRADING
COLORED STONES &
COLORED STONE GRADING

Judge and grade
diamonds by the
4Cs and color.
GEM IDENTIFICATION
GEM
IDENTIFICATION

Learn the characteristics
of colored stones, with
a focus on ruby,
sapphire, and emerald.
EQUIPMENT & INSTRUMENTATION
EQUIPMENT &
INSTRUMENTATION

Learn diamond
identification and grading
skills GIA graders use.
TREATMENTS, SYNTHETICS & IMITATIONS
TREATMENTS,
SYNTHETICS &IMITATIONS

Identify diamonds
that have been treated
or are imitations.
MARKETS &
SUPPLY CHAINS

Understand how market
factors and the supply
chain affect value.

CAMPUS TOUR

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COURSE CALENDAR