A diamond has long been loved as the ultimate symbol of lasting love because of it's purity and ageless beauty.

Whether you have experienced buying diamonds for engagement rings before or not, you may be unsure as to why one is worth $3000 while another one is only worth $300. What goes into determining the price of a diamond?

Diamonds are graded based on 4 criteria. The first of these is referred to as the carat, which is a measurement of the weight. The more carats the more expensive a diamond becomes. Size is not the only factor that matters however, remember: it is what is on the inside that counts.

Carat size may push the price up, but only slightly if there is no clarity. Several facets determine clarity on both an internal and external basis. Internal aspects, dubbed inclusions, and external aspects, dubbed blemishes, all contribute to the overall clarity score.

The number of inclusions as well as their size and tint all factor into the overall clarity score, as do the number and size of surface blemishes. A flawless diamond is at the top end of the clarity scale, referred to as 'pure'. An inexpensive diamond may carry with it the classification of 'heavily included'.

These differences are due to the cooling process of the diamonds against other materials. Lack of clarity is a lack of perfection. A diamond is forever, and no one wants to be stuck with an imperfect one forever; therefore, this impacts the price.

Color is the next element that affects price. Although clarity is important, there are special cases where under certain conditions underground a diamond may have taken on a certain coloration that actually increases its value.

There is a scale of coloration that ranges from "D," where no color is present, to "Z," where color is easily visible. There is a spectrum known as "beyond Z," where the colors are rich and vibrant within the diamond and are referred to as fancy colors.

Cut is the final factor in diamond grading. This is an often forgotten element of diamonds, but it is extremely important, as it gives this remarkable stone its ability to come alive.

A diamond that sparkles and glitters can be said to have 'fire'. The actual rating system uses common words like good, average, and irregular. The bottom line though is if you want your diamond to sparkle even in dim light, then you need to make sure the cut is impeccable, and that will cost you more money.

Understand the 4 elements that make a diamond a special and precious gem: carat, clarity, color and cut. Knowing the difference between a dud and a dazzling diamond will be the difference between money spent poorly and money well spent.

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