Isolated monolayer thickness WS2 are grown onto c-cut (0001) sapphire substrates. This particular product contains monolayer thickness WS2 triangular flakes randomly distributed across sapphire substrate. While some regions reach continuity with coalesced WS2 triangles, this sample contains well-separated triangles for advanced spectroscopy, microscopy, and electronic measurements. Synthesized monolayer WS2 triangles are highly luminescent and Raman spectroscopy studies also confirm the monolayer thickness.