The Swiss Gemmological Institute SSEF has developed a new device that can analyze large quantities of melee stones and flag possible synthetics.
The lab’s patent-pending Automated Diamond Spectral Inspection (ASDI) can look at round polished diamonds ranging from 1 mm to 3.8 mm in diameter, at a rate of 4,000 stones per hour, the lab says. It can conclusively identify naturals and flag possible synthetics and stones treated by HPHT.
At press time no information was available about the device’s cost.
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