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BUCHWALD JEWELERS
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Brilliance - White light reflections from the surface and the inside of a diamond that determine the brightness of the stone. Carat - One of the Four C's, carat refers to the standard unit of weight used for gemstones. One carat equals .200 grams (or 200 milligrams). Weights are given to the nearest 1/100th of a carat, an amount which is called a "point." For example, a .50 carat gemstone might also be called one-half carat or a 50-point stone. Clarity - One of the Four C's, clarity is a term used to describe the absence or presence of a gemstone's inclusions and blemishes. Color - One of the Four C's, color refers to the degree to which a diamond is colorless. Diamond color is a significant factor in determining value. The color scale ranges from D to Z, from colorless to light yellow.
Cut - One of the Four C's, the cut of a diamond refers to its proportions. Diamond - native crystalline carbon that is usually nearly colorless, that when transparent and free from flaws is highly valued as a precious stone. Finish - The quality of a diamond’s polish, the condition of its girdle, and the precision of the cut. GIA Report - A report that provides an objective analysis of a diamond’s quality. The Gemological Institute of America (GiA) issues several types of reports. The GIA Diamond Grading Report is available for diamonds of all weights. The Dossier is a special report issued for diamonds weighing less than 1 ct.
Shape - Shapes other than the standard round brilliant are called fancy shapes or fancy cuts. Their names are based on their shapes. The best known are the heart, marquise, pear-shaped cut, emerald-cut, oval, and radiant.
Symetry - The alignment and positioning of the facets, or flat surfaces. Each facet should be carefully positioned by the diamond cutter in proper proportion and relationship to the other facets. The alignment of each facet should be sharp and precise; improperly joined facet junctions can make a diamond appear uneven. The symmetry of a diamond is generally defined as either Poor, Fair, Good, Very Good, or Excellent.
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Crown -
The portion of a cut
stone that is above the girdle.