PayPal has released a list of top five mobile payments the company has processed in 2012. 

They are: 

5. Painting for US$40,000 

4. Men's diamond chain necklace for US$40,000 

3. Collection of rare coins for US$46,000 

2. White gold necklace with 125 diamonds for US$46,000 

1. Bulldozer for US$48,000 

From this list, one could see that the most expensive item was actually a work tool. Unless it was diamond-encrusted. LOL