Stone beads from the site of Troy, Turkey, have been studied in order to understand better the nature of lapidary technology and trade during the third to second millennium BC in this part of Anatolia. Eighteen carnelian and two rock crystal beads were documented through visual examinations, measurement and photography to identify the raw material, as well as general aspects of manufacture and style. Silicone impressions of the drill holes as well as some of the engraved surfaces were made in order to study the nature of drilling and abrasion under a Scanning Electron Microscope. Through these studies, it is possible to identify the presence of different types of bead production and drilling technology during each major chronological period at the site. Some of the beads may have been produced at Troy or at nearby sites in Anatolia while others have links to the southern Aegean and eastern Mediterranean regions as well as the more distant regions of Mesopotamia and the Indus Valley.