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DIAMOND GRADING

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Diamond Grading – Gemological Laboratory Services

  • Service is provided in respect of cut and polished diamonds only.
  • Minimum size acceptable for issuing a full report is 10 cents (0.1 carat).Grading is carried out only under controlled conditions,
  • Grading is carried out only under controlled conditions, keeping in view GIA standards.
  • Full grading report includes clarity, color, cut, fluorescence, and a plot diagram showing important clarity characteristics.
  • Summary grading report contains same information as the full grading report but does not include any plot diagram.
  • In case of doubt about the stone being a natural diamond, diamond grading report will not be issued and a fixed charge will be taken  from the client.
  • In case a diamond has been enhanced by HPHT treatment but the same is not detected in the laboratory during routineexamination, ACGS will not be responsible for the same.
  • Fancy colored diamonds are graded for clarity, cut, and color; color grade is assigned as per parameters laid down by the  GIA.
  • Methodology – Each and every Diamond is certified after a thorough analysis and study by a qualified and experienced  diamond grader. Each diamond undergoes rigorous and meticulous study and analysis before preparation of the report.
  • Credibility – The laboratory is known for its credibility, impartiality and independence.
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International Gem-A Diploma

Gemmology Diploma

Learn more about what you will study on Gem-A’s globally- recognised Gemmology Diploma course.

Further your knowledge of Gemmology

Gem-A, supported thousands of students who want to advance their gemmological knowledge and secure a world-recognised and industry-respected qualification. Tha Gem-A Gemmology Diploma is the most prestigious gemmological qualification in the gem and jewellery trade.You will look at a wider range of gems, synthetics and treatments, and will build upon the practical and theoretical knowledge learned during your Gemmology Foundation course, leading to a more in-depth understanding of gemmology and the principles of gem testing and enhanced gem identification skills.Graduates of the Gemmology Diploma can apply for Fellowship of Gem-A, allowing them to use the letters FGA after their name. FGA Membership status conveys a student’s knowledge, integrity, membership of a professional body and commitment to professional development, and is highly valued within the gem industry.

Course Details

Duration

10 weeks

Price

Pounds 2160 to Gem-A + Rs. 1,30,000/- to ACGS

Qualification

Gem-A Level 6 Diploma in Gemmology

Study method

At our Accredited Teaching Centre

Who can apply?

Only graduates of our Gemmology Foundation course can apply for the Gemmology Diploma

Eligibility criteria

To be eligible for the Gemmology Diploma, you must have first passed Gemmology Foundation
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DIAMOND GRADING LAB CLASS

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In the all-important diamond trade, ability to grade diamonds accurately is vital to assign value. A lab class at ACGS provides an opportunity to acquire or fine-tune diamond grading skills. Get trained to grade diamonds accurately under personal supervision of an experienced instructor using a modern gemological microscope as well as a 10X loupe.

WHAT YOU LEARN

  • Understand the concepts of clarity, color and cut in diamonds
  • Grading diamonds for clarity
  • Grading diamonds for color
  • Grading diamond cut
  • Detect treatments
  • Distinguish common stimulants
  • Characteristics associated with synthetic diamonds

WHAT YOU EARN

  • ACGS Diamond Grading Certificate

PROGRAM CONTENT IN BRIEF

  • Anatomy of polished Round Brilliant Diamond
  • The 4 Cs of diamond value
  • Clarity characteristics and clarity grading procedure
  • Plotting diagrams
  • Color scale in diamonds and color grading procedure
  • Grading proportions, symmetry, and polish
  • Grading fancy shapes
  • Small size diamonds – sieve sizes
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DIAMOND SORTING

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DIAMOND SORTING SERVICES FOR GEMSTONE TRADERS AND DIAMOND BUYERS

  • A great percentage of small diamonds are cut and polished in India. Not only are these exported in large quantities, the domestic consumption levels are quite high. Such diamonds, normally referred as stars and mellee, need to be assorted carefully for the purpose of categorization and hence, value ACGS provides this service for diamond merchants and buyers who look to trade in lots of sorted goods.
  • Assortment is carried out on the basis of color, clarity and cut.
  • Assortment service is provided in respect of loose diamonds for sizes above +4 sieve size only.
  • Minimum weight of packet accepted for assortment is 3.00 carats.
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GRADUATE DIAMONDS DIPLOMA PROGRAM

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When it comes to handling, grading and trading the “King of Gems”, basic and peripheral knowledge will not do. You need an in-depth understanding of the diamond properties, principles and techniques of grading. You also need to pick up the skill from a qualified instructor who can guide you as to the dos and the don’ts.Master the knowledge and skill of a professional grader at ACGS, and see your level of confidence soar!

WHAT YOU LEARN

  • Origin, nature, important diamond properties, diamond fashioning.
  • The effect of 4Cs on diamond value.
  • Methodology to grade diamonds for color, clarity, cut, and finish.
  • Diamond simulants, synthesis, and treatments.
  • Buying and selling diamonds.
  • Providing tips for diamond buying and guiding consumers while working in the sales department.

WHAT YOU EARN

  • ACGS GRADUATE DIAMOND DIPLOMA

PROGRAM CONTENT IN BRIEF

  • Evolution of the diamond industry.
  • Shaping of the modern diamond market.
  • Origin, exploration, and mining of diamonds; important diamond sources.
  • Important diamond properties.
  • Diamond cutting.
  • Grading procedure for Clarity, Color, Cut and Finish.
  • Fancy colors and Fancy Shapes.
  • Recutting, and Repolishing of diamonds.
  • Simulants, Synthetics, and treatments.
  • Diamond trading.
Lectures and practical work go hand-in-hand.
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DIAMONDS

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Diamonds are available in all grades of color and clarity. We offer stones with XXX and VG cut  grades. All diamonds are pre-examined at ACGS before being cleared for sale. We also make available GIA certified solitaires. ACGS Diamond Grading Report is provided with all other solitaires at a nominal fee.
  • Stars – all sieve sizes available
  • Melee – sizes up to 10 cents, cutting styles include fancy shapes
  • Pointers – All sizes upto 40 cents
  • Solitaires – up to 2.0 carat and above in any of the prevalent cutting styles
  • Fancy colors – fancy yellow and champagne colored stones in different sizes pear, princess, marquise, emerald
  • Other sizes – up to 30 cents, cutting styles include RBC, pear, princess, marquise, emerald
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JEWELRY RETAIL PROFESSIONAL DIPLOMA PROGRAM

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Be the face of jewelry industry! A retail-sale professional operates from the front and interacts with customers across the sale counter on a daily basis, or supervises the functioning of a showroom in a senior capacity. This program (consisting of three Certificate Courses – Jewelry Basics, Diamond Basics, and Colored Stone Basics) prepares you to get the critical product knowledge and the sales techniques that you employ, making jewelry purchase an enjoyable and memorable experience for your customers.

WHAT YOU LEARN

  • 4 Cs of diamond value and significance of each for your customer.
  • How to explain the differences between different natural stones, synthetics, and possible treatments.
  • Fundamentals of precious metals.
  • Converting jewelry styles, designs, and other features into benefits.
  • Applying proven steps for smooth and satisfying jewelry sales.

WHAT YOU EARN

  • ACGS JEWELRY RETAIL PROFESSIONAL DIPLOMA

PROGRAM CONTENT IN BRIEF

  • JEWELRY BASICS: Precious metals; Regulations and Testing; Jewelry styles; Features and Benefits; Customer interaction and conducting sales; Cleaning and care of jewelry.
  • DIAMOND BASICS: Diamonds and Diamond Value; Color as a value factor; Clarity as a value factor; Cut as a value factor; Weight as a value factor; Selling diamond jewelry
  • COLORED STONE BASICS: Gemstones; Color and signicance; Phenomenal stones; Other three C’s; Gem pipeline and market; Synthetics, Imitations, and Treatments; Retail sale of stone-studded jewelry; Cleaning and care.
Lectures and practical work go hand-in-hand
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CUSTOMIZED TRAINING PROGRAM

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Companies in the field of diamond or colored stone trading, pearl trading, jewelry manufacturing  or having sizable retail outlets employ significant number of skilled persons in different departments / sections of the company. It is assumed that all of them have attained professional qualification in one field or the other. It has often been stressed that training is a continued process for growth and betterment in any company. Hence the need to send selected groups of employees for specially designed programs. Such investment in their employees by companies prove very rewarding in the short- and in the long-term. ACGS offers quality service in this field. Most frequent requirements of such training involve one or more of the following broad areas:
  • Diamonds
  • Particular groups of gemstones
  • Pearls
  • Jewelry retail
  • All proposals falling in this category need to be discussed in terms of specific training needs, number of employees to be trained. Duration, charges and other related issues are then finalized.
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DIPLOMA IN GEMOLOGY

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Gemstones never fail to fascinate. Centuries of human history reveal the fascination of civilizations with colored stones of diverse nature. There are hundreds of different gemstones, coming from nearly all continents of the globe. See the wonder world of colored stones unfold at ACGS, getting an insight into their origin, the great variety they exhibit, their properties, and how to identify them. Pick up correct techniques and practice with hundreds of actual gemstones using standard gemological equipment, under guidance of an experienced instructor. Further, this program enables you to get into position to use your product knowledge in actual trade practices to be a successful business professional.

WHAT YOU LEARN

  • Properties of gemstones.
  • Identifying most of the common gemstones.
  • Use of standard gemological equipment to identify stones.
  • The gem pipeline.
  • To distinguish between natural and synthetic gemstones.
  • Relationship between quality, rarity and value.
  • How the gemstone market functions.

WHAT YOU EARN

  • DIPLOMA IN GEMOLOGY

PROGRAM CONTENT IN BRIEF

  • This comprehensive program has three broad segments:
    1. Descriptions
      • All important gemstones seen in the marketplace
      • Historical background, where relevant
      • Composition and properties
      • Key identifying features
      • Treatments
      • Synthesis
      • Imitations
      • Market and trade
    2. Concepts and Principles
      • Basics of gem science
      • Origin and nature of minerals and gemstones
      • Crystallography basics
      • Physical properties
      • Optical properties
      • Compositions
      • Gemstones under magnification
      • Advanced techniques in gemological studies
      • Synthetics & Simulants
      • Gemstone Treatments
    3. Determinations
      • Techniques of observation.
      • Using different instruments – Refractometer, Polariscope, Dichroscope, Microscope, Spectroscope, UV Lamp, Electronic SG balance.
      • Correct procedures and precautions
      • Precise identification
    Lectures and practical work go hand-in-hand 
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GEM IDENTIFICATION

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GEMOLOGY LABORATORY SERVICES - GEM TESTING, GEM IDENTIFICATION CERTIFICATES

  • Service is provided in respect of cut and polished stones, loose or mounted, tumbled stones, beads, figurines, carvings and rough crystals.
  • Non-destructive testing methods only are employed.
  • Distinction is made between natural and synthetic stones.
  • If a treatment is detected, the same is indicated under “Comments”.
  • Reports of geographic origin are provided in respect of emerald, ruby and sapphire, on specific request, and are charged separately.
  • Gem Identification reports are provided in the following formats:
    • Full report – indicating all parameters measured, characteristics observed and an image of the stone.
    • Card report – indicating all vital characteristics and an image of the ston
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GRADUATE PEARLS DIPLOMA

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There are few gems which are lovelier than fine pearls. Throughout history, they have enjoyed a special place in the hierarchy of precious stones. The ACGS Pearls Program is designed to take you on a journey into the world of pearls, their origin, characteristics, grading and their trade.

WHAT YOU LEARN

  • Understand the history, the process of culturing, and marketing of pearls.
  • Distinguish between natural and cultured pearls.
  • Professionally evaluate and grade cultured pearls.
  • Promote the relationship of beauty, value, and quality in your merchandise.

WHAT YOU EARN

  • ACGS Graduate Pearls Diploma

PROGRAM CONTENT IN BRIEF

  • Nature of pearls – structure and composition
  • Natural to cultured pearls
  • Value factors
  • Pearl farming
  • The Akoya, The Tahitian, The South Sea cultured pearl
  • The Freshwater cultured pearl
  • Treatments, Imitations, Pearl testing
  • The Business of Pearls
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JEWELRY CERTIFICATION

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  • Service is provided in respect of cut and polished stones, loose  or mounted, tumbled stones, beads, figurines, carvings and rough crystals.
  • Non-destructive testing methods only are employed.
  • Distinction is made between natural and synthetic stones.
  • If a treatment is detected, the same is indicated under “Comments”.
  • Reports of geographic origin are provided in respect of  emerald, ruby and sapphire, on specific request, and are charged separately.
  • Gem Identification reports are provided in the following formats –
    • Full report – indicating all parameters measured, characteristics observed and an image of the stone.
    • Card report – indicating all vital characteristics and an image of the stone.
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