The Arrowscope allows customers to take a detailed look at the diamonds they are interested in buying. They can, for instance, find out whether a diamond shows the perfect cut, thus belonging to the category of so-called Hearts & Arrows diamonds. In such a case, the Arrowscope shows an even pattern of eight arrows and eight hearts. With the built-in LEDs, the Arrowscope lights up the cut; in addition, it simulates the sparkling effect engendered by the LEDs and a rotating platform. The related images can be streamed wirelessly to a tablet.