How can I know how much my handbag is?

By weight? Get a scale and measure it. The price? Find to brand and look it up online. The price should be on there.

You can refer to the price onine,find the same Brand bags Compared in the different store .so you can know what the price of your bags.
if you want to know more about the price of the bags ,you can visit
http://www.korsonlineoutlet.com/ or http://www.korsoutletstores.com/