Bitcoin Diamond is a Bitcoin fork introduced before Bitcoin implemented Segregated Witness (SegWit) as an effort to offer an alternative to Bitcoin with lower transaction fees, faster confirmations, and different mining distribution. Team EVEY and Team 007 forked the Bitcoin protocol to create and maintain Bitcoin Diamond.
Bitcoin Diamond forked from Bitcoin at block 495,866 on November 24, 2017. It builds on the Bitcoin Core codebase and uses an Optimized Proof-of-Work X13 consensus algorithm that aims for an ASIC-resistant network. Bitcoin Diamond supports 8 to 32 MB block sizes, according to the white paper. New blocks are added on average every 10 minutes, and mining difficulty adjusts every 12 hours. Bitcoin Diamond supports SegWit.