Segmentation by type distinguishes the material’s structural variants and their respective market shares. Single‑crystal CVD diamonds, prized for uniform lattice orientation, occupy a premium niche, typically serving high‑precision cutting and optical applications where anisotropic properties are advantageous. Polycrystalline diamonds, characterized by a mosaic of grains, dominate the bulk of the market due to their cost‑effectiveness and isotropic performance, especially in wear‑resistant and thermal‑management products. Nano‑grain diamonds, featuring sub‑100 nm crystallites, are emerging in ultra‑smooth polishing and electronic substrates, offering enhanced surface finish and reduced scattering. Composite grades, which embed CVD diamond particles within metal or ceramic matrices, address hybrid performance requirements such as combined toughness and hardness for specialized tooling. Each type contributes proportionally to the total market, with polycrystalline forms driving the majority of volume, while single‑crystal, nano‑grain, and composites collectively support high‑value, application‑specific segments.