Downloaded 37 times
Uploaded byRajesh Pandya
Gemmology ppt3. of workshop.pdfx
This document provides an introduction to gemology and gem testing. It discusses the history and definitions of gemology, as well as interesting facts about various gemstones. It outlines the properties studied in gemology like clarity, color, cut, and optical phenomena. It also discusses man-made imitations, synthetics, and stone treatments. The document promotes gemology training for those seeking a career in jewelry, trading, appraising or selling gemstones. It provides details on the IIGJ certification program which includes courses on introduction to gemology and basic gem testing.
In this document
Powered by AI
The presentation opens with a welcome to the audience and introduces the topic of gemology.
Highlights unique facts about gemstones such as sapphires, diamonds, tourmaline, and amber.
Defines gemology, covering gem properties, occurrence, identification methods, and cutting techniques.
Discusses the need for gemology due to increasing man-made imitations and the demand for systematic studies.
Explains synthetic gemstones created in labs, their properties, identification, and manufacturing processes.
Details various treatments done on gemstones to enhance appearance and how these are identified.
Lists traditional gemstones known as Navratnas, including Ruby, Coral, Diamond, Emerald, and others.
Mentions the profitability of gems and diamonds in the jewelry industry, emphasizing the need for knowledge.
Explains classification of gemstones into precious and semi-precious with historical context.
Presents the B.R.D criteria for evaluating gemstones, focusing on beauty, durability and rarity.
Defines key color elements in gemstones: hue, intensity, tone, and distribution.
Describes clarity in gemstones including internal features, inclusions and their characteristics.
Discusses gemstone cutting styles and the importance of the perfection of the cut.
Examines types of luster in gemstones including metallic, adamantine, and vitreous.
Explains different transparency levels of gemstones: transparent, translucent, opaque.
Introduces various optical phenomena found in gemstones such as asterism and chatoyancy.
Continues discussion on optical phenomena including sheen, play of color, and aventurescence.
Identifies who benefits from gemology knowledge: traders, the next generation, and investors.
Explains the need for designers to have knowledge of various gems according to budget and specifications.
Describes manufacturers' responsibilities such as setting styles and repairing jewelry.
Outlines qualifications needed for gemology education, indicating no prior knowledge is needed.
Details assessment methods in gemology courses including practical tests and continuous assessment.
States that completing the program grants an I.I.G.J. certificate leading to industry knowledge.
Discusses academic career options like instructors, technicians, and lab assistants.
Describes entrepreneurial roles such as consultants and appraisers, along with administrative positions.
Highlights various positions in sales and marketing related to the gemstone industry.
Encourages the audience to consider a career in gemology with a structured program offering sessions.
Outlines the gemology course content including chemical and physical properties, identification methods.
Introduces the basic gem testing components essential for the jewelry industry.
Concludes with a thank you to the audience, wrapping up the presentation on gemology.
More Related Content
Similar to Gemmology ppt3. of workshop.pdfx
Gemmology ppt3. of workshop.pdfx
- 1.
- 2. Interesting Facts aboutGemstone 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.
- 3. Gemology The professional coursethat 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
- 5. The Need forGemology The increasing number of Man-made Imitations, Synthetics & Treatments make it essential for a Systematic & Scientific study of Gems & Diamonds.
- 6. Synthetic Synthetic Gemstone has sameproperty as natural gemstone, but they are created in laboratory. What types of Synthetic available in the market? How they identified How they manufactured Crystalline inclusion Silk in Burma ruby Silk with Hexagonal structure
- 7. Treatment Enhancements or treatments are doneon the gemstone to improve their colour and clarity What types of Treatments are available How they identified Different procedure of treatment
- 8. 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
- 9. Need…… The maximum profits inthe 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.
- 10. 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!!!!!!!!!!!!!!!!
- 11. B. R. D……………A Gem? Beauty – subjective 4 C’s……+ phenomena Durability - wearability Rarity – natural or man made
- 12. ColourKey elements In describingColor: 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
- 13.
- 14. Cut Style of cut– brilliant, step, cabochon, bead Perfection of cut – symmetry, polish etc
- 15. 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
- 16. Transparency Transparent Semi Transparent Translucent Semi –Translucent Opaque
- 17.
- 18. Optical Phenomena Sheen /Adularescence geocities.jp Play of Colour Aventurescence spiritoftherock.sslpowered.com Oriented
- 19. Who are thepeople to benefit? The TRADER / JEWELLER: The NEXT GENERATION YOU – The Investors:
- 20. For the JewelleryDesigner Knowledge of a range of Gems Customer specification Budget requirement.
- 21. For the JewelleryManufacturer Setting Style Repairing Polishing jewellery. Care & Cleaning
- 22. Qualifications required You couldbe a graduate or an undergraduate Prior knowledge of gemstones is not required.
- 23. Assessment Practical work sheets formpart of the continuous assessment Practical test at end of Programme Objective Tests are also given
- 24. Reward At the endof 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.
- 25. Career Positions (Academic) Instructor forGemmology –Technical Laboratory Technician or Asst.: Mounted Jewellery Grading Gem Testing Laboratory Advanced Technology Lab
- 26. Career Positions Entrepreneurs Gemstone Consultant FreelanceJeweler / Trader Gemstone Inspector (Banks, Insurance Cos.) Gemstone Appraiser Administration Asst. Manager Customer Service Representative Administrative Asst. Store Manager Brand Manager Purchase Manager ( Gems) Merchandising Executives….
- 27. Career Positions Marketing Sales Associate Salesprofessional Sales & Marketing Asst. Retail Sales Sales Specialist Sales/ Marketing Executive Traveling Sales & Marketing Representatives…
- 28. YOUR SEARCH ENDSHERE If 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
- 29. Introduction to GemmologyContents 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
- 30. Introduction to BasicGem 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
- 31.