Gst rate on bangles, earrings, necklace

For some reason, I thought it was 5%. This is for imitation, but what about real jewelry? My son gave me an Engraved Dog Necklace for my birthday, and he has a passion for handcrafting, DIY, and everything art-related. I thought this would be a great business idea, as it's something he enjoys, but it's also a fairly appreciated domain lately. Customized gifts are special, and very important for people I think, at least for me, so I started to find out more about all this. My son doesn't have big plans for this yet, but I think it would be great to help him and give him a piece of advice.