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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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