The stones in GIA diamond rings have been analyzed and assessed by GIA, which is the world's largest non-profit gemological research institute. This institute grades only loose diamonds and when you are satisfied that you have a best value diamond, then you can choose the setting for the ring.

There are many ways in which diamonds are analyzed to determine whether they are conflict or non-conflict diamonds. Conflict diamonds come from parts of the world where the sale of the diamonds is used to finance wars and acts of terrorism.

Such diamonds are not permitted to be imported into the US, Canada, and European countries. To make sure that such stones are best value diamonds in this regard, there is a process called the Kimberley Process Certification Scheme.

The Kimberley Process Certification Scheme is not an appraisal of the value of the diamond, as you find with GIA diamond rings and IGI appraisals. Instead it is a certificate attesting to the fact that the diamond you purchase has not been mined or bought from one of the countries on the list of those associated with blood diamonds.

This process lays down a minimum requirement for the shipping of diamonds all over the world and must accompany diamonds shipped into the country, especially from African countries. In this way, you know that you have best value diamonds in that no one has been harmed in the mining process and that the money from the sale will not be used for killing.

Appraisal of the diamonds is the best way to find if you have best value diamonds. GIA diamond rings and IGI appraisals look at four main features of the diamonds in order to assess its value. This is called the four C's of diamond rating and each stone is assigned a letter grade according to the system.

The GIA actually instituted this system of rating that is now used internationally. The report you receive is very thorough and covers just about everything you want to know about the diamond you have purchased or are considering purchasing.

The four C's of best value diamonds refer to the cut, clarity, carat and color of the diamond. Just because a diamond is white and shiny does not mean that it is of good quality because there may be imperfections in the stone that only a certified gemologist can discover.

Many people look at the carat of the diamond, which is its weight, but the other features are just as important. There are five main cuts of diamonds, for example, and if the cutter is a master at the trade, then cuts will be done to perfection. A poorly cut 2-carat diamond may not be as good a value for the money as a smaller size with a perfect cut.

The closer a diamond is to having no color whatsoever, the greater its value. Diamonds that are pale yellow in color are not the best value diamonds to buy because these have a lower rating on the scale. The most highly rated diamonds are those with the letter grades of D, E and F. However, there are also fancy diamonds which are very valuable showing colors of pink, green, blue and bright yellow. These are very rare and are therefore very expensive.