Since all our gemstones are natural, we encourage you to embrace the subtle nuances of the variations that may occur. Some of the stones display natural inclusions, which is a general term for crystals where liquid and gas-filled cavities are enclosed within the gemstone. These inclusions are often highly characteristic of the mineral or gem concerns and form the basis of the distinction between natural and synthetic stones. We do not consider them to be a flaw but part of the natural character of the stone.