Diamonds are some of the most sought after gemstones on earth. The hardness of diamond and light dispersion through the facets causes that well loved ‘fire’ and brilliance. Diamonds are also the hardest material on earth. It is 58 times harder than anything else on earth. Only a diamond can scratch or cut another diamond. This hardness and durability through the ages is what draws people to this magnificent gemstone. Most Natural Diamonds are between 1 billion and 3.5 billion years old. Diamonds form under very high temperature and pressure conditions that only exist about 160 km’s beneath the earth’s surface. Diamond’s carbon atoms are bonded in the same way in all directions (this characteristic is called Isometric). These attributes are responsible for white light being refracted into a spectrum of colours within a diamond when cut (and faceted) in the right way.
Moh's Hardness Scale
The classification system of diamonds are known as the 4 C’s. The quality and thus price of a diamond are based on these four categories. The ‘4 C’s’ is a system that was established by the GIA (The Gemological Institute of America) in the 1940’s. It is a universal grading system by which diamonds are sorted and priced. Read more about the 4 C’s in this dedicated article. At Carla Maxine Jewellery we only use diamonds that strictly adhere to the Kimberley Process – a set of rules implemented to make sure Blood diamonds don’t reach the commercial market. This is also to make sure the mining practices conform to sustainable guidelines. Read more about our Sustainability practices here.
Round Brilliant Cut Diamond side view.
A fully faceted Round Brilliant Cut Diamond.
Natural Coloured diamonds are the rarest form of diamonds. They are the result of a one-in-a-million occurrence where chemical impact on the creation of the diamond, and this process is what lends these stones their incredible colours. Coloured diamonds are graded on their own system, also set up by the GIA. This system works on the degree of colour intensity. Natural coloured diamonds come in a whole spectrum of colours, including Grey, Yellow, Pink, Green, Blue being the second rarest, and Red being the most rare. There are also Champagne Diamonds and Cognac Diamonds, in various shades of Chocolatey Brown. Read more about all the different colours of diamonds here.