The scale is off... the one found with the earring is pretty tiny, it is 10mm and probably 15mm complete (they put it on the pad crooked... they just don’t care!) 25mm is an inch. A pendent is not usually that tiny, and the broken off parts probably had the “attachment” to whatever. At 15 or so mm, it is more likely an earring, even without seeing an ear wire.
I can’t guess the size of his pendant but it is, based in it and the size of say his chin, I would guess larger than one inch? It is quite a lovely piece.