Preusser Jewelers

While not everyone will share the same opinion as to what constitutes beauty, most people want a diamond that will be extremely brilliant. Here’s what you should consider first.

Of all the 4 Cs, cut has the greatest effect on a diamond's beauty. The overall faceting has to be aligned from top to bottom, so when light enters the top center of the diamond (the table) and bounces inside and then back out through the table, you can see the maximum refraction, or brilliance. Simply put, it's SPARKLE! We suggest choosing a cut grade of Excellent and then Very Good.

Diamonds have a unique ability to refract light efficiently This unique ability can be released and maximized only by cutting and polishing the diamond to an extremely high level of accuracy. The GIA and AGS consider not only the proportions of a diamond, but also the craftsmanship of its overall symmetry and polish. Again we suggest choosing a diamond with grades of excellent or very Good, for polish and symmetry. GIA and AGS use the latest in technology to analyze the cut’s impact on the diamond’s light performance.

Color is the second most important factor in a diamond. It's because color or lack of it, can be seen with the naked eye. A truly colorless diamond is extremely rare. (grades D, E, and F) Colors G through J pick of traces of the spectrum, with J having the most tones of color. At K, the diamond will begin to show traces of yellow, and continue down the alphabet getting more yellow, then onto lighter browns, all the way to dark brown at Z. Most diamonds possess varying degrees of yellow or brown and small subtle differences in color can make a substantial difference in value. If a diamond is well cut, the diamond's refraction and dispersion (that sparkle factor) can disguise certain degrees of color. There is different scale for Fancy colors. These are diamonds which naturally contain various elements. The intensity and saturation of color, can make these diamonds extremely rare. GIA/AGS Grading System places diamonds on a D to Z scale, D being the top grade in colorlessdiamonds. To accurately and consistently grade color, a GIA or AGS experienced gemologist will utilize special lab equipment to carefully evaluate the diamonds color.

Clarity is the evaluation of a diamond's internal and external characteristics. Clarity when graded at SI1 and higher, will have inclusions that are visible under 10 power magnification only. The fewer inclusions or blemishes visible under 10 power, will change the clarity grade. Inclusions are internal, and are inside the diamond. To locate these tiny characteristics, the gemologist will use a binocular microscope that magnifies the diamond ten times, which is the GIA and AGS standard for viewing and grading clarity. No two diamonds are alike. After evaluating the size, location, nature, and number, and type of all the inclusions and blemishes, a clarity grade from flawless to Imp is assigned.

caratThe standard used to measure diamond weight is the carat. A carat equals 1/5 of a gram (or 1/142 of an ounce). Each carat is further divided into points, each point representing 1/100th of a carat. For example a 1.00 carat diamond weighs 100 points. The carat weight of a diamond is easier to understand. BUT as diamonds increase in size, their cost tends to increase geometrically. Thus, a two-carat diamond may easily cost more than twice as much as a one carat stone of equal quality. Please call us, email, or even better, stop in to work with one of our staff to assist you in choosing the best diamond to fit your desires. For these reasons, you should contact us for more information.