Color is the most obvious and attractive feature of gemstones. The jewelry industry recognizes the highest quality gemstones by purity of their hue, the depth of tone, and the color saturation. The best value are gemstones that may include "slight" traces of other colors, are not too light or dark, and have a lot of saturated color. Ronaldo Designer Jewelry, Inc. offers some of the highest-quality colored gemstones available. Nearly all gemstones today have been treated to enhance their color. The most common methods of treatment are heating (nearly always seen with aquamarine, citrine, amethyst, sapphire, ruby and tanzanite), bleaching (commonly seen with pearls), and irradiation (performed on nearly all blue topaz).
Unlike diamonds, with gemstones there isn't an "ideal" cut geometrically configured for maximum brilliance. However, a high quality gemstone cut is one that presents the most even color, exposes the fewest inclusions, and displays the majority of the gemstone weight when set in jewelry. A good cut showcases the gemstone's color, diminishes its inclusions, and exhibits good overall symmetry and proportion. Because gemstone color can vary, there are no hard geometrical standards when it comes to maximizing brilliance or color. Gemstones, especially rarer ones, are sometimes cut for size without regard for their color. For example, when corundum varieties such as sapphires and rubies are cut for maximum weight rather than beauty, they may display banded colors or streaks.
Look at the gemstone in the setting and ensure that all the facets are symmetrical. An asymmetrically cut crown indicates a gemstone of low-quality. In all cases, a well-cut gemstone is symmetrical and reflects light evenly across the surface, and the polish is smooth without any nicks or scratches. These are the characteristics that Ronaldo Designer Jewelry, Inc. looks for when selecting our gemstones.
Clarity refers to the internal flaws (inclusions) or the external blemishes of a stone. However, even though clarity is important, it does not carry the premium that perfection has with diamonds. For example, a valuable emerald can have inclusions because of the natural formation process that results in many natural flaws present in even the most expensive of emeralds. In addition, lighter colored stones need to be cleaner, as their flaws show up more easily. Darker colored stones can hide their defects easier because of the depth of their color. Most inclusions are not visible with the naked eye. However, larger ones can be seen with the unaided eye. When considering a colored gemstone's clarity, you should measure your expectations against the standard for that variety of gemstone. Some varieties of colored gemstones such as aquamarine, blue topaz, and citrine have naturally fewer inclusions while other gemstones such as emerald and ruby tend to have a higher rate of acceptable inclusions.