A diamond cantilever can be different too:
1) One piece cantilever/stylus like Sony did long time ago, on this cantilever no one can remove the stylus tip, stylus is a part of cantilever. However the whole piece of diamond attached to a long aluminum pipe anyway. I don't have a picture of SONY with diamond cantilever, but the joint pipe looks exactly like this one with sapphire cantilever.
2) One piece cantilever + stylus like Dynavector did, this is very short cantilever, the diamond stylus tip attached to diamond cantilever with minimum glue. But two pieces.
P.S. Coating one material with another is also very old technique, Stanton did that on his best signature model SC-100 W.O.S. long time ago, there was an aluminum cantilever coated with Red Sapphire.
1) One piece cantilever/stylus like Sony did long time ago, on this cantilever no one can remove the stylus tip, stylus is a part of cantilever. However the whole piece of diamond attached to a long aluminum pipe anyway. I don't have a picture of SONY with diamond cantilever, but the joint pipe looks exactly like this one with sapphire cantilever.
2) One piece cantilever + stylus like Dynavector did, this is very short cantilever, the diamond stylus tip attached to diamond cantilever with minimum glue. But two pieces.
P.S. Coating one material with another is also very old technique, Stanton did that on his best signature model SC-100 W.O.S. long time ago, there was an aluminum cantilever coated with Red Sapphire.