Buying jewellery for Christmas is a good idea if you know what someone is going to want. Jewellery always makes a beautiful gift, that shows you have put thought into it and that you want the person to care about what you have bought. As long as you know what you want to buy and what they will like, it can be a great idea for a Christmas present.
If you are going to buy someone jewellery, you should look at what they wear on a regular basis. Choose something that is the right colour, either silver, gold or a mixture of the two. Most people wear one colour or the other, so you will need to get this right. Make sure you get a colour that people are going to like, so see what will go with the kinds of things they usually wear. You might even want to get them their birthstone as a gem.