Diamond for Quantum Applications Part Two, Volume 104, the latest release in the Semiconductors and Semimetals series, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of timely topics including Color center formation by deterministic single ion implantation, Diamond and Its Investigation by Advanced TEM, Fundaments of photo-electric readout of spin states in diamond, Integrated quantum photonic circuits with polycrystalline diamond, Diamond Membranes, and Diamond nanophotonic and opt mechanics.