When heading out to buy your first diamond there are some basic things you should know about them. The first thing to establish is how much money you want to spend. As with all big purchases, unless you have a set budget it is easy to be persuaded to buy something that you can't really afford. Diamonds are no exception.
Diamonds are sold in carats; carats are measures of weight, just like ounces. One carat is equal to 200 milligrams. The larger the carat the more expensive the diamond will be, and, a carat that is in one piece is much more expensive that several small pieces of diamond that are combined to make a carat. Also, the larger the carat the more rare it becomes, though small carats are quite common.
Understanding carats can be a bit confusing because a carat is based on density. The denser a diamond is, the more carats it will weigh. This is why a small diamond can sometimes weigh more carats that a larger diamond.
Buying a diamond is a big investment so do some reading before you go shopping to make sure you know what you are buying.