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Divers of Sewa 150
Artisanal Diamond Divers in the Spotlight
Fifty-year old John is a diamond diver in Sierra Leone, one of a few hundred or thousand such divers out of some
News Oct 07, 2020 Sonia Esther Soltani
La Peregrina pearl
SSEF Launches Service Identifying Pearl Species
The Swiss Gemmological Institute (SSEF) has introduced a service that determines a pearl’s species using DNA fingerprinting.The
News Jun 03, 2020 Rapaport News
SSEF Gem Track
Lab Debuts Rough-to-Polished Gem Tracker
The Swiss Gemmological Institute (SSEF) has launched a service for linking polished gemstones to their original rough,
News Feb 26, 2019 Rapaport News
LMHC padparadscha
Gem Group Clarifies Sapphire Color Requirement
Stones must have a stable color to qualify as padparadscha sapphires, according to a ruling by the Laboratory Manual Harmonisation Committee
News Dec 11, 2018 Rapaport News
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