You didn't mention a particular pattern in your question so we will work in general. The china can range from $300 on up for a 20 piece set. However, that is the retail price. When selling it the value is whatever someone will pay and that is generally significantly less unless you find a collector and the pieces you have are no longer produced.
Noritake is a fine china whose value will vary depending on age, condition, and style. If you have a full set of this china it will be worth more than individual pieces. To find the value of your set, you should visit your local antique store and see if they can appraise the collection for a small fee.