Gemstones Covered

The course covers 28 important gemstones:

Traditional & Precious Gemstones

Coral

Ruby

Emerald

Diamond

Pearl

Blue Sapphire

Yellow Sapphire

Pink Sapphire

Hessonite

Cat's Eye

Other Important Gemstones

Opal

Garnet

Moonstone

Lapis Lazuli

Alexandrite

Amethyst

Aquamarine

Citrine

Morganite

Onyx

Tourmaline

Peridot

Spinel

Topaz

Turquoise

Zircon

Moissanite

Iolite (Neeli)

Tiger's Eye

Note: The supplied list actually contains 29 gemstone entries when Hessonite/Garnet and the final Tiger's Eye are counted separately. For the website, I recommend stating “29 Gemstone Varieties Covered” unless you want Hessonite & Garnet treated as one combined course topic.

Course Curriculum

Module 1 — Introduction to Gemology

Introduction to Gemstones

Gemstone Classification

Precious and Semi-Precious Gemstones

Natural, Synthetic and Imitation Materials

Basic Gemstone Properties

Colour, Transparency and Lustre

Hardness and Specific Gravity — Introduction

Basic Optical Properties

Module 2 — Navratna & Precious Gemstones

Detailed introduction and identification knowledge of:

Ruby

Emerald

Blue Sapphire

Yellow Sapphire

Pink Sapphire

Pearl

Coral

Hessonite

Cat's Eye

Students will learn:

Basic characteristics

Colour and appearance

Common varieties

Basic identification features

Typical inclusions

Common treatments

Natural vs. synthetic considerations

Basic quality observation

Module 3 — Important Coloured Gemstones

The programme covers:

Opal

Garnet

Moonstone

Lapis Lazuli

Alexandrite

Amethyst

Aquamarine

Citrine

Morganite

Onyx

Tourmaline

Peridot

Spinel

Topaz

Turquoise

Zircon

Iolite

Tiger's Eye

The focus will be on recognition, observation, comparison and basic identification.

Module 4 — Diamond Fundamentals

Introduction to Diamond

Basic Diamond Properties

Diamond Appearance

Diamond Colour and Clarity — Introduction

Diamond Cut — Basic Understanding

Basic Diamond Identification

Diamond Testing Principles

Common Diamond Simulants

Diamond vs. Common Simulants

Introduction to Synthetic/Laboratory-Grown Diamonds

Module 5 — Gemstone Identification

Students will learn a systematic approach to gemstone examination.

Identification observations include:

Colour

Transparency

Lustre

Cut and shape

Surface characteristics

Internal characteristics

Inclusions

Optical observations

Basic physical properties

The emphasis will be on observation before conclusion.

Module 6 — Gemological Instruments

Introduction and practical demonstration of commonly used gemological instruments, subject to instrument availability at the training centre.

Instruments may include:

10× Loupe

Refractometer

Polariscope

Dichroscope

Spectroscope

UV Lamp

Specific Gravity Equipment

Gemstone Tweezers

Gemstone Holder / Gripper

Microscope

Basic Diamond Testing Instruments

Training Focus

Instrument identification

Correct handling

Basic operating procedure

Testing precautions

Observation and recording of results

Module 7 — Gemstone Treatments

Introduction to common gemstone treatments and their importance in the jewellery industry.

Topics include:

Why gemstones are treated

Introduction to heat treatment

Filling treatments

Dyeing

Irradiation — basic introduction

Surface treatments

Treatment-related observations

Importance of treatment disclosure

Module 8 — Practical Gemstone Examination

Students will work with gemstone samples under supervision.

Practical observations:

Visual examination

Loupe examination

Inclusion observation

Colour assessment

Transparency assessment

Lustre observation

Basic optical testing

Comparative identification

Recording observations

5. Practical Training

The course includes 4 Dedicated Practical Training Days.

Practical Day 1

Gemstone Identification

Students examine selected gemstone samples and learn systematic identification procedures.

Practical Day 2

Gemological Instruments

Hands-on introduction to available gemological instruments and testing procedures.

Practical Day 3

Diamond & Simulant Testing

Basic practical testing and comparison of diamond with common simulants.

Practical Day 4

Treatment & Final Practical Assessment

Observation of treated gemstones, practical examination and assessment.

6. Recommended

7. Course Benefits

After successful completion of the course, participants will gain knowledge useful for:

Gemstone identification

Jewellery business

Gemstone trading

Gemstone retail

Jewellery manufacturing

Gemstone sourcing

Customer guidance

Basic gemstone examination

Understanding gemstone treatments

Basic diamond identification

Understanding gemological instruments

8. Career & Business Relevance

The course is relevant for individuals interested in:

Gemstone Trading
Jewellery Business
Jewellery Manufacturing
Gemstone Retail
Gemstone Wholesale
Jewellery Designing
Gemstone Sourcing
Gemological Testing — Foundation Level

It can also serve as a foundation for individuals who wish to develop further knowledge in professional gemology.

9. Eligibility

Open to All

No specific academic qualification is required.

The programme is suitable for:

Jewellery business owners

Gemstone traders

Jewellery professionals

Students

Beginners

Retailers

Wholesalers

Individuals interested in gemology

10. Course Mode

Online / Offline

The course may be conducted through online or offline training, depending on the batch schedule and availability.

Practical sessions are subject to the training arrangement and availability of physical samples and instruments.

11. Course Fee

Course Fee: ₹10,000

GST @ 18%: ₹1,800

Total Payable: ₹11,800

12. Certificate

Participants who successfully complete the programme will receive:

IIGL NAVRATN COURSE CERTIFICATE

The certificate may include:

Participant Name

Course Name

Course Duration

Certificate Number

Date of Completion

Authorized Signature

IIGL Official Seal

QR Code for Certificate Verification

13. Certificate Verification

Each certificate can be issued with a unique certificate number and QR-based verification facility.

Certificate Verification

Verify your certificate through IIGL's official verification system.

This provides an additional mechanism for confirming certificate details.

14. Admission Process

Online Admission

Complete the online application and submit the required admission details.

Offline Admission

Visit the IIGL training centre and complete the admission formalities.

Admission is subject to course schedule and seat availability.

15. Website Short Description

IIGL Navratn Course

IIGL Navratn Course is a one-month gemstone knowledge and identification programme designed to provide comprehensive understanding of Navratna and other important gemstones. The programme combines theory, demonstrations and 4 dedicated practical training days covering gemstone identification, gemstone examination, basic diamond testing, laboratory instrument handling and introductory treatment identification.

16. Website Highlights

For the course page, I recommend showing these as the main highlights:

1 Month
Course Duration

20 Days
Training Schedule

4 Days
Practical Training

Online / Offline
Training Mode

Open to All
Eligibility

₹10,000 + 18% GST
Course Fee

Certificate
IIGL Navratn Course Certificate

QR Verification
Certificate Verification