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07 Jun

Hello world!

giionlineadmin2017-06-07T07:14:55+05:30

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ONSITE TESTING FORM

Full Name

Email

Contact No.

Message

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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
D	Exceptional White +	Colourless
E	Exceptional White	“
F	Rare White	Near Colourless
G	Rare White	“
H	White	“
I	Slightly tinted white	Faint Colour
J	Slightly tinted white	“
K	Tinted White	“
L	Tinted White	“
M-Z	Tinted	Very 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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