Andean opal is a lovely bluegreen translucent opal found in the Andes mountains near San Patricio, Peru. Copper may be the essential trace element that causes its soft distinctive color. It has been used by...
Diamond enhancements are specific treatments, performed on natural and sometimes synthetic gems (usually those already cut and polished into gems), which are designed to improve the gemological characteristics...
Naturally perfect gemstones in large sizes with desirable color and high clarity are quite rare. For this reason, those high quality natural gemstones command extremely high prices. You are basically paying...