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The Gemological Center of the Scientific Institute in Israel and the Association of Members of the Israel Diamond Exchange offer a wide range of services:
✅ Gemological services for diamonds and gemstones, diamond sorting, identification and certification of diamonds in accordance with the GIA/EGL principles.
✅ Professional advice for jewelers, insurance appraisers, tax authorities, pawnshops, and consumers.
✅ Appraisal of jewelry and loose stones.
✅ 30+ years of experience in organizing training, retraining and advanced training of specialists in gemology, with international certification.
⚠️ Gemological training sessions are held at the Israel Diamond Exchange. Those wishing to enroll in the course, please leave a request in the feedback form or by phone, and we will inform you about the schedule of the next sessions and available training formats.
Diamond Grader training course. Modern methods of diagnosing and evaluating diamonds, expert evaluation according to the GIA (Gemological Institute of America) scoring system.
💡 Training sessions every 2 months (ask for dates)
💡 Training sessions every 2 months (ask for dates)
⏳ Duration:
📌 Full-time study: Sun-Thu, 9.00 am - 5.00 pm - 10 lessons - individual session in Tel-Aviv Bursa or in Amsterdam branch
📌 Morning sessions: Sun, Tue, Wed, 10.00 am - 2.00 pm - 6 weeks in Tel-Aviv Bursa
📌 Evening sessions: Tuesdays, 4.00 pm - 8.00 pm - 4 months in Tel-Aviv Bursa
*Terminology in international diamond grading in English (basic English is desirable)
Topics:
💎 Diamonds – introduction: Formation, origin, mining, and deposits of diamonds, sorting of primary raw materials.
💎 Diamond crystal: crystal identification features, molecular structure and directions of hardness.
💎 Processing; its various stages - splitting, cutting with a laser and choosing the cutting direction.
💎 Ideal proportions: proportion value and its influence on the beauty and final appearance of the stone.
💎 Fantasy Shape" cut. Various forms of "fantasy" cut. Documentation of "fantasy" stones.
💎 Gemological equipment: introduction and practical exercises.
💎 Clarity: GIA & EGL grading and other international standards.
💎 Color: GIA & EGL grading and other international standards. Training on real collections of diamonds (standard stones). Gemwizard classification of colored diamonds (software).
💎 Enhancement: ways to define different types of enhancement and commercial aspects.
💎 Synthetic diamonds: producing and identifying synthetic diamonds. Impact on the global diamond market.
💎 Artificial diamonds: ways to identify artificial diamonds.
💎 Laboratory workshops: practice with more than 120 stones, work with gemological tools and eye inspection.
💎 Diamond grading: calculating the value of diamonds of various specifications. Rapaport Table.
Express course. Full-time study Sun - Thu, 9.00 am - 5.00 pm in 10 academic days in Israel or at the College's office in Amsterdam, in English. Course session price: $ 6100
Participation in the Morning session: Sun, Tue, Wed, 10.00 am - 2.00 pm — 6 weeks (morning sessions), or 4 months evening sessions: Tuesdays, 4:00 pm - 8:00 pm, in Hebrew/English with terminology in English. Course session price: 7990₪ (NIS)
✅ For new repatriates joining the Diamond Grader course in Israel the college has an agreement with "Misrad Klita" (Ministry of Absorption) to refund up to 7000 shekels of the course fee!
📜 Diploma: The Gemological College of the Diamond Exchange is an exclusive educational institution in Israel, an international authority and an expert in gemology education for over 30 years. College graduates receive an official international certificate of Diamond Grader, recognized and popular throughout the world's diamond industry.
✳️ For those who come to Israel or Amsterdam for training we book hotels near the college at the package prices Training with accommodation !
⚠️ Students will need to pass theoretical and practical testing to obtain a diploma and degree.
Gemologist is a grader of colored gemstones. Modern methods for diagnosing and evaluating colored gemstones using gemological equipment. Grading of the clarity, quality, and cut of a wide range of colored gemstones.
⏳ Duration: 28 days / 20 sessions
Topics:
💎 Gemological equipment: introduction and practical exercises.
💎 Introduction: the formation of gemstones in nature and the defining criteria of a gemstone.
💎 Crystallography: various forms of crystallization and methods for determining by external signs.
💎 Hardness: Mohs hardness scale and its impact on the direction of processing.
💎 Optics: angles of refraction in the material and the permeability of light, refractometer, double refraction of light, optical axis, polariscope and types of polarization, dichroscope and color polarization.
💎 Spectroscopy: elements of color, visible and invisible spectrum, glow of stones under ultraviolet.
💎 Specific gravity: definition, hydrostatic method, heavy solutions, units of measurement.
💎 Inclusions: What is an inclusion? Various types of inclusions, typical inclusions in stones from various deposits.
💎 Optical phenomena: star, cat's eye, color change, etc.
💎 Gemstone processing: types of processing and ways to determine them. Impact on the global market.
💎 Leading stones: corundum (ruby and sapphire), beryl (emerald). Major deposits, history of gemological analysis, typical characteristics and basic processing.
💎 Other gemstones: about 35 most common stones in the jewelry industry, the main types and their market value, methods of identification, main deposits, similar stones and fakes, artificial production and identification of types of enhancement.
💎 Organic matter: pearls, amber, ivory, tortoise shells, corals, etc. International rules and restrictions.
Individual session price – $ 8500
📜 Diploma: The Gemological College of the Diamond Exchange is an exclusive educational institution in Israel, an international authority and an expert in gemology education for over 30 years. College graduates receive an official international certificate of Gemologist, recognized and popular throughout the world's diamond industry.
✅ Students will need to pass theoretical and practical testing to obtain a diploma and degree.
Two-stage course in one session:
Diamond Grader + Gemologist
⏳ Total 60 hours of college education
Individual course price – $ 14,400
Diploma: The Gemological College of the Diamond Exchange is an exclusive educational institution in Israel, an international authority and an expert in gemology education for over 30 years. College graduates receive an official international certificate of Diamond Grader + Gemologist, recognized and popular throughout the world's diamond industry.
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