4 C's of Diamonds

Diamond Guide

The four C's of a diamond - cut, clarity, color and carat weight

Diamond Cut

The better the proportions of a diamond, the more brilliant and fiery the diamond will be. Did you know that many diamonds are miscut to weigh more and to look larger than their well-cut counterparts? These stones will not have the fire and sparkle of a well-cut diamond.

The Ideal Cut from Jessop's is the most brilliant diamond of all. Ideal Cut describes a diamond that has been cut by a master diamond cutter with exactly placed facets to create the most splendid combination of luster, beauty, brilliance and fire. A diamond cut to Ideal proportions has light entering from any direction reflected totally through the top and then dispersed into an incomparable display of sparkling flashes and rainbow colors. Very few diamonds - actually, fewer than two percent -- are cut to the exact and mathematical precision of a true Ideal Cut.

Diamond Clarity

Almost every diamond has naturally occurring imperfections or inclusions. The harder it is for a trained diamond grader, using a 10-power binocular microscope, to find these inclusions, the higher the clarity grade and the more valuable the diamond. A flawless diamond - a diamond with no inclusions visible at this magnification - is extremely rare.

Diamond Color

For most diamonds, the whiter or more colorless a diamond, the more rare, valuable and desirable it is. Generally, diamonds contain tints of color, making the diamond look off-white, or producing a diamond that is yellowish, brownish or grayish.

Occasionally, diamonds of naturally occurring deeper color will come along. These diamonds are called fancy-colored diamonds. Some of the fancy colors are yellow, rich cognac brown, champagne and peach. Green and especially blue are colors considered extremely rare and extremely valuable when natural. At Jessop's, all fancy-colored diamonds are naturally colored.

Diamond Carat Weight

The fractions of a diamond's weight are described as points. One carat equals 100 points; a 50-point diamond is one-half carat. It takes more than a million mined carats to unearth a fine-quality 1-carat diamond - good reason for a 1-carat diamond to cost four or five times as much as the one-half-carat stone of equal quality. Large diamonds are so rare, value and price increase due to rarity.

To give you an idea of just how much carats weigh, 5 carats are the equivalent of one gram.

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