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 chemical impurities and crystal structure imperfections.
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.
Gemology is the scientific study of gemstones. It covers their origin/sources, Classification, Optical & Physical Properties, various Quality parameters and most importantly their identification. Gemology also includes Gemstone treatments & their detection, techniques of making synthetic stones & testing methods to differentiate from their natural counterparts. Read More[...]