Auction site eBay won a big victory in federal court yesterday. Tiffany & Co. sued eBay in 2004 after asking the company to remove listings with the Tiffany name in them. Tiffany claimed that eBay knew many counterfeit goods were being auctioned on the site, and that eBay had a responsibility to stop them.

The court ruled in eBay's favor, saying that it is Tiffany's responsibility to protect its own trademarks, not the auction company. The judge said that general knowledge of trademark infringement didn't make eBay responsible for the infringement.

Last week, eBay lost a similar suit in France, brought by LVMH Moet Hennessy Louis Vuitton SA. The maker of luxury goods won a judgment of over $61 million against eBay because of the sale of counterfeit purses, perfume, and accessories.

In the blistering summer heat, everyone enjoys watermelon. It was a staple during my childhood and it is one of the most fun fruits for kids to eat. Watermelon is huge, drips everywhere and you can have seed spitting contests. What's more fun for a kid than making a mess? However, if watermelon was expensive, I would have certainly grown up making a mess with other fruits.

Recently a Densuke watermelon fetched $6,100 at an auction in Japan. This is one of the most expensive melons ever sold in Japan, and I would have to imagine the rest of the world as well. At 17 pounds the cost of the fruit was about $359 per pound. I think that's more than I would fetch at an auction. For comparison, it's equivalent to 122 pounds of Godiva Dark Chocolate Truffles. This price isn't even much of a shocker for Japan where a pair of cantaloupe melons sold for $23,500 last month.

You thought your love would last forever. Your rings were a symbol of that love. And then one (or both of you) changed your mind. And now those lovely diamonds which were "forever" are worthless to you.

That's where I Do...Now I Don't comes in. It's an auction site that helps you sell your engagement ring. The site was started a year ago by siblings Josh and Mara Opperman, and their goal was to help jilted fiances and spouses recover some of their money for their diamonds, and offer shoppers a great deal in the process. Josh has firsthand experience with an expensive diamond engagement ring -- his jeweler offered to refund him 30% of his purchase price after his woman left him.

The site sets itself apart from eBay with its quality. I Do...Now I Don't offers certificates of authenticity with each ring, guaranteeing buyers that their diamonds are for real. And buyers are finding that they can get a great bargain at the site, which gives them an opportunity to own more ring than they thought they could afford.

The site even offers a forum for those recovering from heartbreak to share their stories with one another. Share your romantic horror stories with others on the site which helps you pawn the symbol of your failed relationship.

Tracy L. Coenen, CPA, MBA, CFE performs fraud examinations and financial investigations for her company Sequence Inc. Forensic Accounting, and is the author of Essentials of Corporate Fraud.