Diamonds are the most valuable gems in the world. Because the quality of diamonds can vary so much, it is essential to have a universal diamond grading system. This system is call the four C's and it mesures the Carat, Cut, Clarity and Color.

Diamond News Agency - Rare colored diamonds are diamonds that are not see through, the most common color of rare colored diamonds is yellow while the rarest is blue. Even though colored diamonds are very rare and increase the value of the diamond, the other 3 c's - cut, clarity and carat still have a big impact on the price of the rare colored diamond.

Articles about the many different diamond cut shapes helping you understand and decide which shape is best for you. The most popular diamond shapes are round brilliant, princess, emerald and marquise shaped diamonds.

Before diamonds go out on the market for sale they are put through extensive tests to determine that they are authentic before receiving a diamond grading certificate. There diamonds are graded by the level of their cut, clarity, color and carat weight.

Before Buying a diamond, you should review a copy of the diamonds certificate as proof that it has undergone a professional examination. A diamond certificate is a report created by a team of gemologists, they evaluate, measured, and scrutinized the diamon

Both gold and platinum are precious metals and are considered rare. That is why they are expensive to buy and worth a lot to own. It’s no wonder that quality jewelry, including engagement rings, is made from gold and platinum. Many people simply don’t know the difference between the two metals. In fact, white gold is often confused for platinum and vice versa. Here’s some information that is going to clarify the differences and give you a solid education in both: