Onur Aygün

Onur Aygün

Graduate Gemmologist (G.G) - Diamond Grader

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location of Onur AygünIstanbul, Istanbul, Türkiye

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  • Timeline

  • About me

    Iva Pırlanta şirketinde Co-Founder

  • Education

    • Hoge Raad voor Diamant Antwerp

      2012 - 2012
      HRD Antwerp Gemstone Identification Gemology

      Gem identification basics:-Optics and gemstones.-Physical properties of gemstones.-Crystallography.-Gemmological instruments.-Identification techniques.Systematic classification of the most important gemstones:-Mineralogy of gemstones.-Systematic classification of minerals.-Systematic classification of gemstones: ruby and sapphire (corundum)-emerald and other beryl -alexandrite and other chrysoberyl- spinel group – garnet group – quartz group (e.g… Show more Gem identification basics:-Optics and gemstones.-Physical properties of gemstones.-Crystallography.-Gemmological instruments.-Identification techniques.Systematic classification of the most important gemstones:-Mineralogy of gemstones.-Systematic classification of minerals.-Systematic classification of gemstones: ruby and sapphire (corundum)-emerald and other beryl -alexandrite and other chrysoberyl- spinel group – garnet group – quartz group (e.g. citrine, amethyst) - topaz – tourmaline – zircon – peridot.-Study of inclusions using a gemological microscope.-Classification of inclusions.Distinction between natural and synthetic ruby, sapphire and emerald:-Lab. grown gems like Verneuil and identification.-Artificial glass and assembled gems. Show less

    • Hoge Raad voor Diamant Antwerp

      2012 - 2012
      HRD Antwerp Graduate Gemmologist (G.G.) Gemmology

      -Systematic classification of common, rare and opaque gemstones-Systematic description of spodumene: jade, opal, feldspar, quartz group, tanzanite, lapis lazuli, malachite, rodochrosite, kornerupine, sphene...-Review of synthesis - methods-Identification of the studied gemstones (natural or synthetic) -Treated gemstones and practical sessions-Heat treatment-Fracture filling-Diffusion-Coating-Irradiation-Dyeing-Bleaching-Identifying all gemstones… Show more -Systematic classification of common, rare and opaque gemstones-Systematic description of spodumene: jade, opal, feldspar, quartz group, tanzanite, lapis lazuli, malachite, rodochrosite, kornerupine, sphene...-Review of synthesis - methods-Identification of the studied gemstones (natural or synthetic) -Treated gemstones and practical sessions-Heat treatment-Fracture filling-Diffusion-Coating-Irradiation-Dyeing-Bleaching-Identifying all gemstones and the determination of their natural or synthetic character Show less

    • Selçuk Üniversitesi

      2007 - 2011
      Lisans Derecesi Jeoloji Mühendisi
  • Experience

    • Vav Diamond

      Nov 2012 - May 2014
      Graduate Gemmologist (G.G) - Diamond Grader

      -Responsible for multi million dollar inventory-Graded, evaluated and priced stones according to market fluctuations-Assisted diamond buyer in the purchase of new stones-Educated sales staff to support them in the promotion of our product-Conducted complete gemological testing for gem identification, and quality verification-Maintained daily diamond inventory control systems

    • Radiance Diamond

      Jun 2014 - Jan 2017
      Co-Founder

      -Advised and sold customers in use of gems to create attractive jewelry items-Resolved customer complaints or involved the appropriate manager to ensure customer satisfaction-Evaluation of loose diamonds, sapphires, colored gemstones, and melee to optimize high quality, maintain consistency and reduce cost-Responsible for ensuring quality control standards are met throughout the inspection process of manufactured products, finished jewelry and one of kind creations within tight deadlines-Formulate and implement system organization, policies and procedures to ensure smooth operation of business-Appraised fine jewelry for retail replacement value - diamond engagement rings, precious gems jewelry-Evaluated numerous diamonds of varying shapes and sizes monthly for many clients with specific needs-Coordinated and negotiated with clients, suppliers, and manufacturers to create custom works of jewelry Show less

    • Vav Diamond

      Jan 2017 - Jul 2018
      Graduate Gemmologist (G.G) - Diamond Selling Executive

      -Build and maintaine customer relationships-Establish long term professional relationships with clients-Coordinate and negotiate with clients, suppliers, and manufacturers to create custom works of jewelry-Develop and enhance business alliances growing the clientele-Consistently attain corporate established goals/standards weekly, monthly, annually-Resolve customer complaints to ensure customer satisfaction-Advise and sell customers in use of gems to create attractive jewelry items-Formulate and implement system organization, policies and procedures to ensure smooth operation of business-Mentoring and supporting sales team-Manage, support and supervise team of staff members-Educate sales staff to support them in the promotion of our product-Consulting clients jewellery to approximate total value, determine trade-in value, need for repair-Evaluated numerous diamonds of varying shapes and sizes monthly for many clients with specific needs-Graded, evaluated and priced stones according to market fluctuations-Assisted diamond buyer in the purchase of new stones-Conducted complete gemological testing for gem identification, and quality verification Show less

    • Iva Pırlanta

      Aug 2018 - now
      Co-Founder
  • Licenses & Certifications

    • HRD Gemmologist

      HRD Antwerp
      Oct 2012
    • HRD Graduate Gemmologist

      HRD Antwerp
      Oct 2012
    • Diamond Grading and Identification

      HRD Antwerp
      Sept 2012