The Provenance Proof Blockchain – the first coloured gemstone blockchain initiated by Gübelin Gem Lab in cooperation with technology provider Everledger – will be launched globally in February 2019. The primary purpose of the Provenance Proof Blockchain is to record all steps of a specific gem along the supply chain as a means to track […]
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]]>Coloured gemstone specialist Gemfields sold US$72 million worth of rough rubies at an auction in Singapore, representing an all-time record for the company. Gemfields, a 100-percent owned subsidiary of Pallinghurst, offered a total of 86 lots of Mozambique rubies, of which 82 were auctioned off. The average price was pegged at US$122 per carat, a […]
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