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27 Oct
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Tributes

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In Loving Memory of Waiting for approval

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07 Jun
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Hello world!

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Welcome to WordPress. This is your first post. Edit or delete it, then start [...]

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07 Mar
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Company Strategies

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07 Mar
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Financial Managers

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07 Mar
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How to Get Started

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06 Mar
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Strategies

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About Us

  • History
  • Board of Trustees
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1 Step 1
ONSITE TESTING FORM
Full Name
Email
Contact No.
Message
0 /
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1. Ref. No. Number
Refers to Certificate Number, It is a unique number given to each certificate. To trace the certificates this number is the only source.
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2. Dated

Date on which the stone is tested and issued

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3. Carat Weight

Refers to total Diamond Weight

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4. Colour

GII defines colour grade of diamond by comparing with international colour grading standards, using light source of 6500 Kelvin.

International Standard of colour Grading.

GIA (USA)CIBJO (Europe)DESCRIPTION
DExceptional White +Colourless
EExceptional White“
FRare WhiteNear Colourless
GRare White“
HWhite“
ISlightly tinted whiteFaint Colour
JSlightly tinted white“
KTinted White“
LTinted White“
M-ZTintedVery light to light colour
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5. Clarity Grade

Clarity of a diamond graded by 10 x magnification by an achromatic  &  an aplanatic loupe.

FL/ IF or Loupe Clean: Free from Internal as well as External Clarity characteristics/Free from internal characteristics inclusions ( Internally flawless)

VVS : Very, very small inclusions

(VVS1, VVS2)

VS: Very small inclusions

(VS1, VS2)

SI: Small inclusions

(SI1 , SI2)

I1: Internal Characteristics/inclusions which are       prominent

I2: Internal Characteristics/inclusions which are very prominent

I3: Internal characteristics/inclusions which are extremely prominent.

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6. Shape and Cut

The cutting style in which polish of Diamond is faceted for eg. RBC, Pear, Marquis, Baguette, Princess etc.

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7. Measurement

Dimensions in Millimeters (length × Width × total depth in mm)

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8. Proportion Indicates

1. Height: Overall height divided by breadth or average diameter
2. Table: Width of table divided by breadth or average diameter.

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9. Finish

Finish is the excellence of polish, external flaws and overall symmetry of a faceted diamond.
1. Polish: Surface finishing of a Diamond
2. Symmetry: The correct facet alignment & overall balance and Proportions of a polished Diamond

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10. Girdle

Girdle is the diameter of a diamond, dividing the crown above from the pavilion below. This gives the gem a higher measure of transparency.

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11. U.V.Fluorescence

Graded according to strength and colour of the fluorescence under U.V.light.

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12. Comments

Details of Characteristic of the stone not shown on diagram or not covered by the above entries.

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13. Indicates the position, shape, number, size of inclusions in the diamond, forming the basis of the clarity grade.

The red symbol denotes internal characteristic. Green symbol denotes external characteristics. Symbols indicate natural and position of the Characteristic inclusions not necessary their size.

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14. Indicates the name and signature of the Authenticated gemologist.

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I welcome you to the Gemmological Institute of India, which we had established during the year 1971, with a view to impart scientific knowledge and propagate the science of gemstones in India. We really had a difficult time in convincing the Indian trading community the need for gemmological knowledge to deal along international standards. Nevertheless, the times have changed very fast.

We are happy to note that the ambition we had in mind, while setting up the Institution for the benefit of our industry, is nearing completion. We are here to enrich your knowledge in Gemstones and make you an expert in gemmology to the world standards. For seeking knowledge, age and position are no bar. It is just your interest that benefits you. I am proud to have with me a group of young, devoted and highly qualified instructors in this field. It is for you to take the best out of them. 

During the 41 years of relentless efforts we have attained a very high standard of professionalism in teaching the science of gemstones. At GII the teaching is not a vocation, it is a mission for us.

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Your Host

Mr.Bakul R Mehta, 

(Co-Chairman Org. Committee, Chairman GII)

Mr.Anup Zaveri,

(Chairman Local Org. Committee, Managing Trustee GII )

Mr.Mahesh Vaghani, 

(Co-Chairman Local Org. Committee, Trustee GII)

Dr.MD Sastry

(Convenor Org. Committee, Head R&D GII)

Dr.AVR Reddy

(Secretary Org. Committee, Chief Coordinator GII)

Mr.Kirti P Das

(Secretary Local Org. Committee, Chief Manager Administration GII)

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Scope
  • Synthetic Diamonds
  • Natural
  • Gemstones & Treatments
  • Origin of Gemstones
  • QA/QC in Testing
  • Detection methods
  • Trade and Consumer relatedissues
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Expected speakers

B R Mehta, GII                     PA Agarwal, GJEPC 
Anup Mehta, BDB              Tom Moses, GIA, USA 
Keynote Speaker; Tom Gelb, UL, USA 
Keynote Speaker; Arvind Parikh, DEAL 
Vote of Thanks ; A V R Reddy, GII, Chair.
Technical Session 1: 
Scientific and technological developments diamonds 
Speakers : 
M D Sastry, GII                    
Philip M, BeBeers
J.P Chalain, SSEF, Switzerland 
Ann VS, HRD; Jeff Post, USA 
Woon Ki Kay, Korea
Tai Jin, NGTC, China.
Technical Session 2: 
Scientific and technological developments in gems 

Speakers : 

Ann Van S, HRD                    Mahesh G, GII 
Cavalerio G. CIBJO              Wilavin, Thailand 
Ted Themlis, Thailand         Lore K / Winmeng Xu, 
Gubelingemlab Swiss         Gamini Zoyaso, Sri Lanka.

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Panelist

Panel 1 : Trade related matters and concerns;

Panel 2 : QA/QC, and lab standardization  

Panel 3 :State of the art Detection methods and certification requirements


  • Cavalerio G, CIBJO
  • Sumed P, GIT, Thailand
  • Lian Zhen jie, NGTC, China
  • Fanny Wong, CGE, China
  • Arvind Parikh, DEAL
  • Pranay N
  • Ashish Mehta, NDMC
  • Colin Shah, BDB
  • Mehul Shah, GJEPC
  • Mehul Shah, GJEPC
  • Nilesh Seth, USA
  • Shreyanshu, IDC
  • P S Pandya, NDMC
  • Sabyasachi Ray, GJEPC
  • Sujan Doshi, USA
  • Nirupa Bhatt, GIA
  • Gagan Chowdhury, GTL,GJEC
  • A V R Reddy, GII
  • Sumed P, GIT,Thailand
  • Ramazan Alak Mete, HRD
  • MD Sastry, GII
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Education

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  • Home
  • About
    • About GII
    • Board of Trustees
    • Executive Board Members
    • Gallery
  • Education
    • Education at GII
    • Gemmology Course (Diploma in Gemmology D.G .)
    • Diploma in Diamond Grading (D.D.)
    • Diploma in Jewellery Designing (DJ)
    • Distance Education
    • Short Term Courses
    • Course Duration
    • E Learning
    • Online Application
    • FAQ’s
  • Laboratory Service
    • Laboratory Services
    • Colour Stone Identification and Certification
    • Geographical Origin Determination
    • Diamond Grading
    • Grading of Diamond Studded Jewellery
    • Lab Grown Diamond Testing
    • Diamond Detection Resource Center (DDRC)
    • Onsite Testing
    • Q-CHK ++ AdC
    • Reports
    • How to read certificate
    • Terms and Conditions
  • Research
  • Bulletin
  • News & Events
    • Press Release
    • Past Events
    • Seminars
    • Forum
  • AGDRT
  • Career