A clarity scale has been designed to grade flaws in valuing gemstones. A ten-power loupe is required by the FTC to accurately examine a diamond for clarity. Clarity enhanced - A broad term for gemstones that covers many different treatments or procedures that remove or diminish flaws, thereby enhancing the clarity. Always ask your jeweler what clarity enhancements have been performed on the gemstones you are purchasing, and to state them on your bill of sale. Clouds - A type of inclusion in gemstones that usually a cluster of tiny inclusions that create a milky appearance and can greatly affect value.
Cluster setting - A group of small stones typically set surrounding a large center stone.
Color - One of the 4 c's, color means different things for different stones. In diamonds, the ideal color is D colorless and runs through the alphabet to Z yellow. The term used for judging and determining the ideal hue for colored stones. Color zoning - Patches of uneven color in colored stones that detract from pure dispersion and uniformity of color. Comfort fit - A term for ring design where the edges are smoothed to a round surface for maximum comfort.