They say diamonds are a girl's best friend, but even best friends can have a falling-out when a relationship is over. What used to be such a beautiful, sparkling symbol of your love suddenly has turned ugly with memories of Mr. What-Was-I-Thinking's face staring back at you.

What is a girl to do with a jewellery box full of broken promises? Megahn and Marie Perry, creators of exboyfriendjewelry.com, believe it's time to start moving on and cleaning house. Exboyfriendjewelry.com is a website where women can sell, buy, or trade jewellery given to them by exes. Many women who have been burned in relationships can agree on the site's motto, You Don't Want It. He Can't Have It Back.

It just doesn't stop with jewellery, either. The website also includes items dubbed "gifts that should have been jewellery," such as handbags and wedding dresses. The idea for the website was born when Megahn was discussing with her stepmother, Marie, how after her divorce she wanted to find a safe place to sell jewellery from her ex-husband. Marie suggested they start a website where other women can safely unload their ex-boyfriend jewellery to women who could put the jewellery to better use without the attached memories.

Exboyfriendjewelry.com has quickly become a hot Internet sensation since the website started earlier this year. The site hosts 8,000 registered users and averages 100,000 to 250,000 hits a day.

Here's how to sell items on exboyfriendjewelry.com:

First, you must register on the website before you can buy or sell anything.

Gather the items and start snapping photos of each item. You'll find tips on the site about how to take the best photos.

Upload your pictures and, for each ad, fill out the description form that covers the basics: Jewellery description, condition, rating and price. This is also where the seller can add the scoop on the piece and why he/she is selling it.

Hit the submit button and wait for any potential buyers to contact you.