Well i sell pins, then i sold 1 earlier for 35 d stones, the buyer said we transfer 25 d stones in this world and we hop to other world to transfer other 10 d stones, ive no idea why we do that, i asked him he goes Jagex updated it and they do that when he bought pin on other person, well you can try to transfer 50 in 1 world but i wouldn't risk.
atm, its 46.9k each but change everytime.