The main parameter that sets the value of any gemstone is the weight, or carat. After all, the more a stone weighs, the more expensive it is. Here you can evaluate which jewelry can be purchased in this place https://www.giliarto.com/collections/alexandrite-rings It is with the help of cutting that the stone gets its charm, depth and shine. If you see how an inexpensive or especially rare stone sparkles with all the colors of the rainbow, then you can say with confidence that a cutter has worked on it.