A diamond guide price would be a good thing to get an idea of how much to pay for a diamond when you go shopping.
The price of a diamond depends on a number of factors.
Apart from the industry setting of the price of diamonds for the purchases purposes the points to look for are the Cut, Clarity, Color and Carat weight of the diamond.
Much information about these in detail is provided in the links on this site but it is very important that one really understands how this works and how you can be sure that the diamond you buy is being sold for the right price, hence this diamond guide price.
Here is a general guide to the diamond price.
This can vary depending on the quality of the diamond. The higher the quality the more expensive it is. This means the clearer the diamond, the less imperfections or inclusions it has which lets more light through and makes for a better sparkle. The less color the more brilliant the diamond will be (not including fancy diamonds which are specifically of a color such as rose pink for example) and the heavier the diamond weights the more it will cost. And this cost actually increases expotentially. This means that the price paid per carat of diamond weight will be higher for a larger diamond than for a smaller one. This is why a 1 carat diamond may only cost 1000 to 2000 dollars per carat but a 30 carat diamond may cost 300,000 dollars. Larger diamonds are indeed much more rare than smaller one.
Most diamonds produced are of inferior quality and are used in industry for cutting and in such things as watches. These sorts of diamonds are close to worthless compared to the jewelery quality diamonds.
It is vitally important however that when you buy a diamond, that you get a proper certificate of authenticity from an independent laboratory showing the quality of that diamond. A simple statement by a dealer or jeweler would be insufficient as later on in years of you come to have the diamond valued for insurance or resale purposes you do not want the shock of find out out that you have bought an industrial grade diamond instead of a high quality one.
A diamond guide price therefore is a vitally important factor in determining that you have indeed bought a quality diamond and not just a pig in a poke.