Advance Gemstone Charter

Career at SGL often starts in our classroom.

Our Advanced Gemstone Charter course offers expertise and knowledge to a gem enthusiast and enables them to identify, grade and value gemstones based on international gemstone grading standards. The course aligns closely with the international colored stone industry, which will enable the candidate to easily relate to current market dynamics and terminologies.

Macro view of a precious gemstone under laboratory analysis at SGL Institute.

Overview of the course

  • Get professional insight into identification of gem quality factors
  • Learn definitions, recognize gems’ beauty, rarity and durability affect their value
  • Differentiate between natural and synthetic counterparts with the help of practical learning
  • Hands-on experience with equipment such as refractometer, Chelsea color filter and more
  • Sessions about heat treatment, irradiation, lattice diffusion, dyeing, oiling and resin treatments
  • Learn to identify transparent gems like ruby, emerald, sapphire, tanzanite, and more
  • Detect gemstone phenomena and study causes behind them
  • Various types of cuts and facets and how they affect the transmission of light

Topics Covered

SGL course icon for Quality Factors: Evaluation of gemstones based on specific technical characteristics.

Quality factors

Evaluation on the basis of various characteristics of a gem

SGL course icon for Treatment & Processes: Learning methods used to enhance gemstone appearance.

Treatment & processes

Methods to make a gem look more appealing

SGL course icon for Gem Identification: Detailed training on identifying various types of natural and synthetic gems.

Gem identification

Learn to identify various kind of gems in detail

SGL course icon for Cuts, Shapes, and Facets: Understanding how gemstone cutting affects light transmission.

Cuts, shapes and facets

Cuts, shape and facets for gems

Close-up of a gemologist using a laboratory loupe to perform high-precision gemstone grading.
A large, rough purple amethyst crystal held in a hand to illustrate the collector and buyer career path.
A collection of high-quality, brilliant-cut loose diamonds representing the wholesale trade sector.
Luxury diamond necklaces displayed on mannequins within a high-end retail showroom environment.
High-end designer jewelry including ruby tassel necklaces and gemstone-encrusted rings for auction assessment.

Other Courses

SGL Qualified Diamond Specialist banner: Fast-paced training focused on the 4Cs and diamond market value factors.

Qualified Diamond Specialist

Understand diamond aspects and key factors determining market value, with fast-paced insight into grading and the 4C.

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SGL Qualified Jewellery Specialist banner: Essential foundational training for jewelry sales and product knowledge.

Qualified Jewellery Specialist

An essential foundation of the sales and selling process which will become the key factor along your gems and Jewellery career.

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SGL Retail Product Management banner: A broad course covering jewelry manufacturing, merchandising, and sales techniques.

Retail Product Management

It covers a broad spectrum of topics starting from the evolution of Jewellery to manufacturing to sales techniques and merchandising.

Learn more