IIGJ Welcomes You in

Presentation on

Introduction of Gemology

Interesting Facts about Gemstone

In ancient times the term "Sapphire" meant all blue stones, but usually meant Lapis Lazuli - which was considered the most expensive stone in the world.

Diamonds are the most hardest stones.

Tourmaline s are the only gemstone which come in almost all colour and shades. It’s called as rainbow gem also.

Amber is an organic gemstone also very lightest and softest, it is so light it can float in to salt water.

GemologyThe professional course that gives you

the fastest returns.The science of gem-materials is gemology.

It covers all aspects of

Where & how they occur on earth,

Their physical & optical properties & characteristics.

The techniques used in their cutting & polishing

The instruments & methods employed in their identification

The Need for Gemology

The increasing number of Man-made Imitations, Synthetics & Treatments make it essential for a Systematic & Scientific study of Gems & Diamonds.

Synthetic

Synthetic Gemstone has same property as natural gemstone, but they are created in laboratory.What types of Synthetic available in the market?How they identifiedHow they manufactured

Crystalline inclusion

Silk in Burma ruby

Silk with Hexagonal structure

Treatment

Enhancements or treatments are done on the gemstone to improve their colour and clarityWhat types of Treatments are availableHow they identifiedDifferent procedure of treatment

Navratna Ruby - Manak

Coral - Moonga

Pearl - Moti

Diamond - Heera

Emerald - Panna

Yellow Sapphire - Pokhraj

Blue Sapphire - Neelam

Hessonite Garnet - Gomed

Chrysoberyl Cat’s eye - Lahsunia

Need……

The maximum profits in the jewellery industry lies in gems & diamonds.

Therefore all those who wish to invest / gift / trade in gems & diamonds not only do they need to be aware but also require knowledge of Gems &

Diamonds.

Precious / Semi – Precious

All stones are gemstones

For export/ import purposes – terms precious & semi-precious are used

Precious – ruby, emerald, sapphire, diamond, Semi-precious – all others

In ancient times – the navratnas were considered precious

IN CURRENT TIMES THERE IS NO SUCH THING!!!!!!!!!!!!!!!!

B. R. D…………… A Gem?

Beauty – subjective

4 C’s……+ phenomena

Durability - wearability

Rarity – natural or man made

Colour Key elements In describing Color:

Hue — the precise spectral color –red

Intensity - brightness or vividness, dullness or drabness of the color

Tone - the depth of color (light or dark)

Distribution — the even/ uneven distribution of color

Clarity

Internal features inclusions

Number

Size

Position

Colour

Cut Style of cut –

brilliant, step, cabochon, bead

Perfection of cut – symmetry, polish etc

Luster Metallic : Hematite (Gunmetal)

Adamantine : Diamond

Vitreous : Ruby , Emerald

Silky : Tiger’s eye

Pearly : Moonstone

Waxy : Turquoise

Greasy : Hessonite garnet

Resinous : Amber

Orient : Pearl Dull : Any gem material which

is poorly handled

Transparency

Transparent

Semi Transparent

Translucent

Semi – Translucent

Opaque

Optical Phenomena

Asterism

Chatoyancy nordskip.com

Colour ChangeMetamerism

Optical Phenomena

Sheen / Adularescence geocities.jp

Play of Colour

Aventurescence spiritoftherock.sslpowered.com

Oriented

Who are the people to benefit?

The TRADER / JEWELLER:

The NEXT GENERATION

YOU – The Investors:

For the Jewellery Designer

Knowledge of a range of Gems

Customer specification

Budget requirement.

For the Jewellery Manufacturer

Setting Style

Repairing

Polishing jewellery.

Care & Cleaning

Qualifications required

You could be a graduate or an undergraduate

Prior knowledge of gemstones is not required.

Assessment

Practical work sheets form part of the continuous assessment

Practical test at end of Programme

Objective Tests are also given

Reward

At the end of the course – on successfully completing the theory & practical examinations the student is awarded an I.I.G.J. certificate.

An I.I.G.J. Programme helps students achieve a level of knowledge which can lead them directly into the industry.

Career Positions

(Academic)

Instructor for Gemmology

–Technical Laboratory Technician or Asst.:

Mounted Jewellery Grading

Gem Testing Laboratory

Advanced Technology Lab

Career Positions Entrepreneurs

Gemstone ConsultantFreelance Jeweler / TraderGemstone Inspector (Banks, Insurance Cos.)Gemstone AppraiserAdministrationAsst. ManagerCustomer Service RepresentativeAdministrative Asst.Store ManagerBrand ManagerPurchase Manager ( Gems)Merchandising Executives….

Career PositionsMarketing

Sales Associate

Sales professional

Sales & Marketing Asst.

Retail Sales

Sales Specialist

Sales/ Marketing Executive

Traveling Sales & Marketing

Representatives…

YOUR SEARCH ENDS HEREIf you are in search of a challenging / interesting career

with quick returns then the answer is

Introduction to Gemmology

- 50 SESSIONS

Gem Testing

– 10 SESSIONS

Introduction to Gemmology Contents

Contents:-

Nature of Gemstones, Chemical Characters of Gemstones Crystalline structure of Gemstones Physical and optical characteristics of Gemstone Identification of gemstones (practical) Internal features of gemstones Synthetics and treatments Cutting and polishing of gemstones

Introduction to Basic Gem Testing for Jewellery IndustryContents:-

Introduction

Transparency, Luster and sheen,

Anisotropism and Dichroism

Refractive Index

Spectroscopy – Ultra – Violet Test

Microscopy

Synthetic and Treated Gemstone

Practical Exercise

THANK YOU