The Swiss Gemmological Institute SSEF is an independent non-profit organization, which is operating since 1972. Located in Basel, Switzerland, this foundation ranks amongst the most reliable and prestigious gem testing labs in the world. In addition to the leadership position in gemstone inspection and documentation, SSEF is a part of the Schweizerische Stiftung für Edelstein Forschung which works with an aim to elevate the science of gemstone testing and gemological training. Navratan takes immense pride in collaborating with this institute to maintain the legacy of trust.
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