I solved the problem myself, thanks to anyone who may have been trying to find an answer. I will create a tutorial on how to fix this for anyone who needs it.
EDIT: Tutorial Created: How To Fix Semi-Invisible Accessories When Rendering In Cycles In Blender!
Ok, so, Blender is showing the accessory half-transparent even though I’ve done the common “delete the bottom node” fix.
Reference Images
Half-Transparent Accessories
Deleted Node
Specs In Blender:
Cycles GPU, Render: 300, Viewport: 100, Denoising: OptiX, Light Paths: 7, 256x256 tiles
Thanks in advance!