Diamonds can be colourless or may have a slight yellow tint. However, the diamonds with the least amount of colour are preferred while buying diamonds. A diamond colour is graded on a scale of D to Z. Diamonds that come under D – F on the colour scale display no colour and are the clearest diamonds. D to F coloured are the rarest and the most valuable diamonds than the others on the scale.
Diamonds come with inclusions and blemishes i.e – imperfections inside as well as on the surface of the diamond. The degree to which these imperfections are present on/or inside the diamond refers to diamond’s clarity. This clarity ranges from FL – Flawless to I – Included. Diamonds that are devoid of such flaws are of high quality.
Diamond’s cut determines the quality of a diamond to a great extent. A poorly-cut diamond appears lifeless whereas a well-cut one has a brilliant, fiery, and scintillating appearance. A perfectly cut diamond has ideal proportions, angles, excellent polish and symmetry, and appears larger than other diamonds of the same carat weight.
Carat is a term that refers to the weight of a diamond. One Carat is equal to 0.2 Grams which is just about the weight of a paper clip. A diamond that is big in size, it is expected to be expensive. The cost of a diamond increases with its size, so as the carat weight increases.
Lab Grown Diamonds are assessed, graded, marked and registered by internationally recognised institutes like the International Gemmological Institute (IGI) and the Gemmological Institute of America (GIA).
These institutes provide a certificate that proves the originality and authenticity of the diamond.