Yes, you can create a 24k gold topcoat at home and it won't cost you much! When I read this post from Maki over at Candy Glaze, I immediately knew I wanted to try it for myself too. So I did!
What I needed to create my own 24k gold topcoat:
1. An empty bottle (I used a mini one from China Glaze, but I'd recommend something that holds 5 ml.)
2. A steel ball so you can mix it up
3. Gold leafs (I ordered mine through Blue Point International and paid € 9,20 for 20 sheets of gold leaf including shipping)
4. Tweezers or orange wood stick, something to protect the surface you are working on, gloves (the gold sticks to your fingers)
5. Topcoat OR if you have access to it, suspension base
Now you start with setting up everything you need. The gold leaf is tucked in paper sheets that fold open. What I did was fold open the paper, using the orange wood stick to scrunch up the gold a bit and with the paper itself, I made a nice little ball of it. Don't be afraid it won't come loose again, it will!
You put around 5 sheets of gold in 4/5 ml. of polish, I used 7 sheets in a China Glaze mini bottle that is little over half full now. If you don't have access to suspension base, I used Essence Better Than gel Top Sealer and it does sink, but when I want to use it I just put it upside down for a minute or two and everything is alright.