Rohan has a feeling that Josuke is cheating at cee-lo, and cuts off his own pinky. If he is unable to figure out Josuke's trick in the next round, he says he will pay him 2 million yen to have him use Shining Diamond to fix his finger. But if Rohan does figure it out, he says he'll take Josuke's pinky instead. He even calls Tamami to act as a mediator, having him use his Stand ability so Josuke can't play fairly the next round, either.
Let me see your hand. 
I'll have Shining Diamond fix it.
دعني أرى يدك، سأدع ألماسة ساطِعة تُصلحها
Gib mal deine Hand her, ich mach
sie mit Shining Diamond wieder heile!
Déjame atender tu mano.
La curaré con Shining Diamond.
Déjame verte la mano.
La curaré con Shining Diamond.
Donne-moi ta main,
je vais te soigner avec Crazy Diamond !
Fammi vedere la mano,
così te l'aggiusto con Shining Diamond!
Estica a sua mão!
O Crazy Diamond vai te curar.