Be Safe & Sure with GJI
Laboratory Reports click here
 
   
 
Services & Solutions for your
Business Growth click here
 
   
 
A Place for Traders, Collectors & Gem Enthusiast click here
 
   
 
Learn at GJI, and become a
Certified Professtional click here
 
 
 
 
 
 
 
 
 
Diamond is made up of Pure Carbon. Diamond is the only gemstone present in elemental form.

Diamond is the hardest natural mineral substance on Earth & has hardness of 10 on Moh’s Scale.

 Diamond is formed deep within the Earth at extreme conditions of Temperature & Pressure.

 Diamond comes on the upper layers of the Earth’s Crust through volcanic eruptions.

It takes billions of years for the formation of Diamond Crystal.

Diamonds comes in all possible colours.

The diamond is always colorless if present in its pure chemical composition. So, the various
   colours in Diamonds is due to outside chemical impurities

Diamond has best possible lustre among all transparent gemstones called ‘Adamantine’ .

The melting point of Diamond is 4000 Degree Centigrade.

The Specific Gravity ( SG ) of Diamond is 3.52

The Refractive Index ( RI )of Diamond is 2.417, which is one of the highest RI values among all Gemstones.
 
   How to buy a Diamond?
The popularity of Diamond among consumers in the Indian market has really increased in the past few years but the awareness level about the Quality and Pricing of Diamond is very low. So, the buying of Diamonds is merely on the Trust rather on the Knowledge & Facts. There are lot of simulants and Synthetic Diamonds in the market which have very similar outer appearance to the Natural Diamond. Cubic Zirconia and Moissanite are such simulants commonly seen in the market and it requires a great degree of expertise and technique to distinguish the Natural Diamond from its Simulants. The quality of Diamond depends on 4C’s i.e. Colour, Clarity, Cut and Carat-weight. Each piece is graded on the basis of these 4C’s to evaluate the Diamond. Diamond comes in all possible colours ranging from colourless to light colours to all deep colours. ‘Clarity’ of Diamond refers to the presence of Inclusions and Blemishes in the Diamond. Clarity Grade is decided on the basis of position, colour, size and number of inclusions. Cut is another factor in determining the Quality & Value of Diamond and is least understood among all C’s. Round Brilliant Cut (RBC) is the most preferred Shape & Cutting Style. The weight of diamond is measured in ‘Carat’ (not to be confused for ‘Karat’ used for Gold Purity). One carat is equal to 0.2 Grams. Interestingly, more is the Carat Weight more is the ‘Rate per Carat’.

So, next time you buy a Diamond for yourself, buy it with facts rather on blind trust & be sure what you are treasuring.
GJI also provides Diamond Grading Reports for your safety & Convenience
IF
VVS1
VVS2
VS1
VS2
SI1
SI2
SI3
I1
I2
I3
D
E
F
G
H
I
J
K
L
M
N
O - R
S - Z
 
 
Post Your Query !
Name
Mobile
Email
Address
Message
Enter the code shown above: