All You Need To Know About Diamonds
Are you confused by all the diamond jargon out there? Well there is no need to be. The information below will come in handy if you are considering the purchase of you first diamond.
What are the 4 Cs of a diamond?
The four Cs are the primary criteria used to grade diamonds and assess their value:
Cut: The cut of a diamond is an indication of how well the diamond disperses light.
Clarity: Clarity refers to the amount of blemishes and chemical inclusions within the stone. The grades of clarity are given below:
- FI. Flawless. No blemishes or inclusions.
- IF. Internally Flawless. No inclusions and insignificant blemishes.
- VVS1 and VVS2. Very, Very Slightly Included. Exceptionally small inclusions which are almost impossible to see under a 10x microscope.
- VS1 and VS2. Very Slightly Included. Small inclusions difficult to see under a 10x microscope.
- SI1. Slightly Included. Inclusions are easy to see under a microscope, but hard to notice with the naked eye.
- SI2. Slightly Included. Inclusions can be seen with the naked eye.
- I1, I2 and I3. Imperfect. Inclusions are easily visible to the naked eye.
Colour: Diamonds are prized for their light dispersion and they have the greatest refractive index of any gem. This quality is enhanced if the stone itself is colourless. The degree of colour in a diamond is indicated by a letter, with D being completely colourless and Z being heavily coloured. D-F colours are the most valued stones and command higher prices whereas diamonds of rating N or greater are significantly less expensive.Colourless diamonds are the most precious because they allow for maximum reflection.
Carat weight: A carat is the unit of weight by which a diamond is measured. Because large diamonds are less common than small diamonds, the price of a diamond rises exponentially to its size.
Choosing the cut of a diamond
The cut of a diamond is not the same as its shape. Terms like Princess Cut or Emerald Cut refer to the shape of the diamond. When choosing the cut of a diamond, look for how well it reflects light. Well cut stones will have a sparkly ‘fire’ because they refract light from one facet to another before dispersing it off the top.