It cost US$6.60 (S$8) which free shipping to Singapore. Ordered on the 6th November 2012 and I got it on the 28th November 2012.
Ordered my MicroSIM cutter from Deal Extreme for US$20.00, but now the price has dropped to US$17.43. In case you are unfamiler with Deal Extreme, the price stated includes free shipping. Placed my order on the 11th July 2010 and got it delivered to me on the 22nd July 2010. Took about 11 days before it reaches my house. I think it is because of supplier’s stock issue as when I check the status, it was stuck at “Waiting For Supplier” for a few days.
Using the MicroSIM cutter is pretty straight forward, just place your SIM card into the slot and ensure that the slanted edge matches and press the cutter handle down real hard!