Gemstone purchasers should be aware that natural gemstones are processed from the time they are extracted from the earth by one or more traditionally excepted gemstone and jewelry industry practices. All colored gemstones have probably been subjected to a stable and possibly undetectable enhancement process to improve color and/or stability. Such enhancements may include, but are not limited to, heat treatment, irradiation, impregnation, and oiling. All relevant information will be readily provided to the best of our knowledge. Prevailing market values are based on these universally practiced and accepted purposes by the gemstone and jewelry trade.