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THE 4Cs - How to Determine A Diamond's Quality
To establish a diamond's quality, jewelers examine each of the 4Cs--cut, clarity, carat weight and color. The combination of the 4Cs determines the value of a particular diamond. The finest stones possess the rarest quality in each of the 4Cs, and are the most valuable.
Strive for a stone that offers the best combination of the 4Cs. Ultimately, you'll discover the unique combination of the 4Cs that makes a particular diamond the right choice for you. Its beauty and brilliance will capture the true sentiment of the occasion.
A diamond's size is measured in carat weight, and each carat is equal to 100 points. A .75 carat diamond is the same as a 75 point-diamond or a 3/4 carat stone.
While larger diamonds are highly prized, diamonds of equal size may vary widely in value and brilliance, depending on their qualities of clarity, cut, and color.
The greater a diamond's clarity, the more brilliant, valuable and rare it is.
Virtually all natural diamonds contain identifying characteristics, yet many are invisible to the naked eye. Under the scrutiny of a jeweler's 10x-magnifying loupe or microscope, natural phenomena--called inclusions--may be seen. These are natures birthmarks, and they may look like tiny crystals, clouds, or feathers.
Diamonds categorized as internally flawless reveal no such inclusions. Diamonds with very, very small inclusions are graded as VVS1 or VVs2. The larger the inclusion, the lower the grade and the less rare the diamond. Inclusions that can be seen with the naked eye are graded I1 or I3.
The number, color, type, size and position of surface and internal birthmarks affect a diamond's value. Major inclusions can interfere with the path of light that travels through a diamond, diminishing its brilliance and sparkle and therefore its value.
Diamonds are graded by color, starting at D and continuing through the alphabet.
While many diamonds appear colorless, they may actually have subtle yellow or brown tones and these color grades include P and Q. Although still beautiful, they will be less rare and therefore less valuable. To appreciate the simple beauty of each individual stone, you should compare diamonds side by side with a jeweler.
"Fancy diamonds--in well defined colors that include red, pink, blue, green and canary yellow--are highly prized and particularly rare.
A well cut or faceted diamond, regardless of its shape, scintillates with fire and light--offering the greatest brilliance and value.
While nature determines a diamond's clarity, carat weight and color, the hand of a master craftsman is necessary to release its fire, sparkle and beauty. When a diamond is cut to good proportions, light will reflect from one mirror-like facet to another and disperse through the top of the stone, resulting in a display of brilliance and fire.
Diamonds that are cut too deep or too shallow lose light that spills through the side or bottom. As a result, poorly cut stones will be less brilliant and beautiful and certainly less valuable than well cut diamonds.
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