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DGIC (Diamond Grading & Identification Course

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In-Person / Short Course


Module I

  • Characteristics
  • Formation
  • Sources
  • Minning
  • Cutting & polishing Centres
  • Trading Centres
  • Crystal System
  • Physical Characteristics
  • Optical Properties

  • Module II                                   (4C's Practicals:Grading)

    •       Clarity
              Blemishes & Inclusions
              Plotting & Identification
              International Standard of Grading
    •     Carat
              Devices/ Tools
              Estimation of Weight
              Concept of Sieves
    •     Colour
              International Standard of Grading
              Master stones & Procedure
    •     Cut
              Table %,  Crown Angle
              Girdle Thickness, pavilion Depth
              Crown Height, Total Depth
              Culet Size
              Polish & Symmetry
              Excellent/Very Good/Good/Fair/Poor


  • Module III                                                              (Advance)


    • Fluorescence
    • Fancy Colour
    • Fancy Shapes
    • Pricing/ Valuation
    • Identification of Synthetics & Simulants
    • Synthetic Moissanite
    • Synthetic Diamond
    • Treatments
    • Market terms/ Indian Trade 
    • Diamond Sorting
    • Rejection & Selection
    • Series Making
    • Complete Understanding of:
    •      White
    • Off White (OWLB & OWLC)
    • LB (TTLB, TLB, LB & DB)
    • LC (TTLC, TLC & DC)
    •       Natts
    • All Grades


Jul 16, 2019 - Sep 17, 2019
Tue, Wed, Thu, Fri, Sat
No. of Days: 60
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 HARISON'S DELHI GEM AND JEWELLERY INSTITUTE/ DGL has been established to train and educate people and to serve the gem and jewellery industry. The institute aims to impart quality and professional training based on international standards in various fields related to the gem and jewellery trade that  will help and strengthen your long term stability in the industry.

          Being attached with gem and jewellery trade for more than 32 years, the founders  felt the need for such quality education for gem and jewellery professionals and now with the growing awareness of  this field as a career it is needed to offer quality and professional education. There are very few institutes, which train their students  based on international standards and our idea to set up such a gem and jewellery institute is to provide the same as a practical approach for today's trade.

          The international gem and  jewellery trade is today a fast paced, dynamic, technologically savvy and professionally managed industry. To keep pace with the fast changing environment and global demand for a competitive gem, jewellery and designing technology - ...

DGL/ Delhi Gem & Jewellery Institute
DGL,2021, Bank Street, Karol Bagh, New Delhi, New Delhi, Karol Bagh, India 110005
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