Diamonds are a dog's best friend! The world's most expensive dog collars for incredibly pampered pooches . By DAILY MAIL REPORTER . Published: 13:32 EDT, 10 March 2012 | Updated: 17:26 EDT, 10 ...

Here are some of the most outrageously expensive dog designer outfits that money can buy. ... Diamond pet collars are all the rage. At $150,000, it's a true luxury. Posh Puppy Boutique ...