During the Early Harappan period, bead production and exchange expanded alongside growing settlements in the Indus region, establishing technical foundations for later large-scale gemstone bead industries.
With the rise of large cities in the Mature Harappan phase, craft specialization increased; bead-making became a high-skill industry producing standardized forms in stone, shell, faience, and metals for regional and long-distance exchange.
Cubical stone weights following a widely shared Harappan system supported consistent valuation and exchange—especially relevant for high-value, low-bulk commodities like gemstones and finished beads.
Etched carnelian beads of probable Indus manufacture were deposited in elite Mesopotamian contexts, including the Royal Cemetery at Ur, demonstrating sustained Indus–Mesopotamian exchange in luxury goods.
Excavations at Chanhudaro (Sindh) identified concentrated craft production, including facilities interpreted as bead-making workshops, reinforcing its role as a key manufacturing node within Indus trade networks.
Indus bead-makers developed a distinctive alkaline-etching technique to create white designs on carnelian (etched/bleached carnelian), producing visually recognizable prestige goods suited to long-distance trade.
Archaeological finds and textual references indicate intensified Gulf-and-riverine trade between Mesopotamia and the Indus sphere in the third millennium BCE, with carnelian and other prestige materials circulating widely.
Etched carnelian beads of Indus tradition are documented at Susa, illustrating the breadth of distribution of Indus-manufactured gemstone beads across the Iranian plateau and Near East.
The Gudea cylinders (c. late 3rd millennium BCE) mention acquisition of carnelian and lapis lazuli from “Meluhha,” commonly linked to the Indus region—evidence that Indus-sourced gemstones were known in Mesopotamian elite procurement.
Shortugai in northern Afghanistan is widely described as an Indus trading colony positioned near lapis lazuli sources, indicating strategic expansion to secure gemstone supply lines for ornaments and bead production.
Dilmun (Bahrain and nearby Gulf areas) functioned as a strategic intermediary between Mesopotamia and the Indus sphere; Gulf archaeology and later documentation emphasize its importance within international exchange systems connecting Babylonia and the Indus Valley.
As urban centers and interregional systems changed in the Late Harappan period, evidence suggests contraction and reorganization of long-distance exchange networks that had carried Indus gemstone beads widely during the third millennium BCE.
Michael CarricoBead-making and Long-distance Gemstone Trade (c. 3000–1500 BCE)