Diamond Rings

Diamond Rings: Reading A Diamond Grading Report

A diamond report or a diamond certificate is a certificate that comes along with a diamond when you buy it and it gives you details about specific qualities that the diamond possesses.

Diamond Rings: Where Diamonds are Graded

Diamonds are graded in a grading laboratory and it is meant to evaluate the diamond on certain parameters so that it can go to the buyer when he purchases the diamond. There are various gemmological laboratories around the world, among them, the Gemmological Institute of America or the GIA, the AGS or the American Gem Society, the EGL or the European Gemmological Laboratory, the IGI or the International Gemmological Institute and the HRD or the Hoge Raad Voor Diamant which means the Diamond High Council. There are many more grading laboratories all over the world but these are some of the well-known, established ones.

Diamond Rings: Diamond Grading Parameters

Diamonds are graded on certain parameters and they include the shape of the diamond – whether round, oval, heart, marquise, etc. as well as the cut which refers to the style like princess, brilliant, emerald as well as particulars about the facets in the diamond. Today, there is an addition value rating where the cut is concerned and looking for an Ideal or Excellent rating here would be good. The measurements of the diamond like the diameter, width, depth would be recorded as well as the weight in carats. Also stated would be the colour of the diamond and this is done on a scale from D to Z. Clarity is also an important parameter and this is recorded on a scale of F,VVS1, VVS2, VS1, VS2, SI1, SI2, I1, I2, I3. Then comes a rating of the finish which refers to the extent of polish and shine and there is also a rating of the fluorescence.

There are other parameters of rating too like the plot or the uniqueness of the diamond, the girdle or the line dividing the facets from the bottom, the culet or the bottom point of the diamond and the proportions which is a percentage of the depth of the diamond to the culet.

Diamond Rings: Identifying a Diamond

The diamond is identified by a specific number and the name of the grading laboratory. You’ll find this recorded in the grading report as well. This is what makes every diamond unique. A copy of every grading report will be found at the grading laboratory that graded the diamond.

The diamond grading report makes it easier for a jeweller to sell his diamonds and for a customer to buy them with trust. A buyer does not have to take the jeweller’s word about the quality of a diamond – it is now backed up with a report. If you are looking to buy diamonds, ask for the diamond grading report that goes with it.