In case you are planning to buy this opaque beauty then do go through this article thoroughly as it provides buying tips and facts about the gemstone. Most of us are aware that the quality gemstone whether precious or semi precious is judged on the basis on four important Cs viz. colour, cut, clarity and carat weight. And of course other characteristics are crucial too like origin, enhancements, precautions etc. So one after the other we would discuss all these characteristics with respect to this amazing gemstone. ...– Mark