Alrosa, the world’s largest diamond mining firm from Russia, has partnered with Tencent, the operator of Chinese social media app WeChat, on a new blockchain-based e-commerce project. https://t.co/qHMm03i2tQ — Cryptosombrero (@cryptogotham) December 19, 2019 Together with Everledger, a blockchain platform,  Tencent and Alrosa will launch a new diamond-focused retail mini-program targeted at WeChat’s one billion active users. On December 16, it has been reported that in a joi