Micro-pavé — the technique of setting extremely small diamonds (typically 0.8–1.2mm) in tightly-spaced patterns — represents the most demanding application in jewellery stone setting. The stones are nearly invisible to the naked eye, yet must be placed with sub-millimetre precision to create the characteristic diamond-encrusted appearance.
The Challenge at 0.8mm
At 0.8mm, individual diamonds are approximately the size of a grain of sand. Human setters working at this scale require magnification and extreme focus — limiting practical throughput to 300–600 stones per hour even for experts. Error rates are also higher, as stones are easily misoriented or damaged.
The Semsons Tech Approach
The Semsons Tech machine handles 0.8mm stones through a combination of precision suction nozzles calibrated specifically for this size range, high-precision screw guide transmission that maintains ±0.02mm accuracy regardless of stone size, and the Intelligent Identification System which provides enhanced sensitivity for detecting orientation issues at this scale.
At 0.8mm, the machine operates at approximately 9,000 stones/hour — still representing a 15–30× improvement over manual micro-pavé setting.