Graphene on diamond has emerged as a promising platform for various electronic applications. This brief review article explores the recent advancements and the potential of graphene on diamond for electronic applications with a focus on single-crystal (SC) chemically vapor-deposited and high-pressure and high-temperature diamond. Device fabrication techniques, properties, and performance of single-layer graphene on diamond in various electronic devices are discussed. This hybrid system's challenges and prospects are also analyzed. A particular emphasis is placed on the unique benefits of diamond as a substrate for graphene and its growth, including its high thermal conductivity, mechanical strength, high optical phonon energy, and the importance of achieving high-quality single-layer graphene on SC diamond.