Healing crystals first became popular in the 1970s, with many believing they had natural energy and powers to cleanse, heal, and energise. They've since had a bit of a resurgence in popularity, with many well-known celebrities depending on them and writers such as Emma Lucy Knowles and Aisha Amarfio sharing their knowledge in books set to inspire. Crystals are a great thing to invest in if you believe in cosmic healing, and there are a number of great crystals to give as Christmas 2018 gifts, too.

But let's start with what you actually do with crystals. While some meditate with theirs, sleep with them under the pillow or even wear them in their bra or pocket, you can also just lay out yours around the house. Crystal healing can also involve holding your crystals or even laying them out over your body, but it all depends on what you are comfortable with. Keeping your crystals close to you is the most crucial thing, as you'll benefit most from their healing energy this way.

With all this in mind, I've picked out some of the most popular and most effective crystals to consider as gifts for friends this year. From rose quartz to black tourmaline, there's plenty to choose from depending on what you're in need of...