Is a large piece of rough blue amber exactly the same color all the way through?
It never can be guaranteed that a piece of rough amber, more over a large piece of amber, has the same color all the way through. If we want similar colors, we have to produce many beads and then separate them and sort them according to the colors. Therefore, buying one specimen of lets say 100 gram usually will not give you a set of 33 beads of one color. In addition, you will have to calculate with a loss of up to 2/3 of the original rough weight. If your beads should be clean, you might even have to cut out the inclusions, if there are any in the rough amber you use. So the loss will be even greater.
