Precision Gemstone Guide
Found in virtually every color imaginable, gemstones infuse fine jewelry with a natural brilliance. Whether adorning a pair of stud earrings, a tennis bracelet, or even an engagement ring, a radiant gemstone lends visual interest to any precious metal setting, especially when alternating with diamonds. Since ancient times, gemstones have served as striking symbols to commemorate special events and milestones. Many are officially recognized as birthstones for certain months of the year, and others commemorate specific wedding anniversaries and have become ideal jewelry gifts for those occasions.
Gem Cut: For a majority of gemstones, a superior cut is marked by the stone’s ability to reflect light, its symmetrical appearance, and the luster of its polish. A five-tier rating system—excellent, very good, good, fair, or poor—is used to measure the quality of a stone’s cut.
Gem Color: A gemstone’s color is described by its natural tone and hue. For most stone types, an intense, heavily saturated color of medium tone is attributed the highest value. Many gems are enhanced to improve their colorations, a treatment that’s become accepted in the industry.
Gem Clarity: Precious gemstones have some degree of naturally occurring inclusions which can be in the form of a cloud, or crystal. High quality gemstones are relatively clear to the naked eye. Gems that are entirely clear and contain no inclusions are most likely man-made.
Gem Size: A gemstone’s size is described by its millimeter measurements rather than its weight, as different stone compositions can vary in density. Gemstones with larger measurements are generally valued higher than those with smaller measurements.