A spinal implant for insertion into an intervertebral disc space for intervertebral stabilization, the implant comprising a radiopaque substrate having bone securing serrations coupled to a radiolucent insert. The implant's radiolucent and radiopaque properties facilitate radiographic assessment of fusion across the disc space, assessment of osseointegration between vertebral endplates and osseointegration of the implant to adjacent vertebral end plates. The implant comprises an implant substrate having at least one insert cavity and bone securing serrations, and at least one insert component, whereby the insert component is configured to be securely coupled to the implant substrate via the at least one insert cavity thereby forming the implant. The implant preferably comprises a Titanium (Ti) substrate coupled to a polyetheretherketone (PEEK) insert component whereby the implant serrations are positioned between adjacent vertebral endplates when the implant is inserted into the disc space thereby securely positioning the implant between the adjacent vertebrae.