The 4c's of Diamond


This guide provides a clear and simple explanation of the 4Cs: Carat, Cut, Color and Clarity. Your next diamond purchase does not need to be difficult or complicated. Here you will understand the quality and standards we maintain at Avira Diamonds.


A carat is a unit of weight for gemstones, and it is used to measure the weight of diamonds, either mined or lab-grown. Carat is also the most important quality indicator when buying a diamond. The most sought-after diamond weighs one carat. The more carats, the bigger and more expensive the diamond is! Today, while a 1-carat mined diamond costs Rs. _________ an equivalent Avira lab-grown diamond costs only Rs. ____________ without any difference in quality.


A diamond's cut is the primary factor in determining how much brilliance and sparkle a stone will have. A diamond with an excellent cut will allow more light to return through the top of the diamond, compared to stones with a poor cut. Aligning all of these factors creates the perfect proportions for a stunningly sparkly diamond. At Avira we use only ____ quality to ensure you get the sparkle you deserve.


The colour of a diamond is graded on the letter scale according to its level of color intensity

  • D - Colourless
  • E-F - Colourless
  • G-J - Near Colourless
  • K-M - Faint Yellow
  • N-R - Very Light Yellow
  • S-Z - Light Yellow

At Avira Diamonds, all our products are made with colourless diamonds from the EF range.


Each diamond is unique and has its own individuality. Since lab-grown diamonds are grown we are able to better control the quality and clarity to give the diamond its own unique fingerprint. There are a number of clarity scales that range from flawless to included.

  • F - No inclusions or blemishes are visible
  • VVS1-VVS2 - Inclusions are difficult to spot even for a skilled grader
  • VS1-VS2 – Only minor Inclusions are visible when magnified 10X
  • SI1-SI2 - Inclusions are noticeable to a skilled grader.
  • I1-I3 - Inclusions are obvious and may affect transparency and brilliance.