You should create your own template for hit extremely fast and being custom. Anyway, I was created magento jewellery website with Codazon Fastest Theme for beginner M1/M2 user. There are many plug-in for excellent store but you can use that theme easily and faster. Theme building up and demo import is very quick.
- easily demo by one button import for any store you want
- megamenu option drag/drop on theme
- slider plug-in easy for use not need to know block/HTML
- Codazon FPC for pages very useful
- easy to make daily deals
- instagram/twitter feed
- new filter menu for top and that very useful for mobile users, you not need to create custom layered navigotion for that.
- work faster with premium FPCs
My experience with the ready made M2 theme I bought is that it makes the site slow. Something I didn't notice in M1 (with the same theme). I would recommend creating your own from scratch, as this is something that I will also probably do myself.
As some members said, just build your own. Pick a theme that has a page builder built in, there are some around the forum that have that option.
After that, just don't use the samples, use instead the demo to view a page and try to replicate something you might want on your store. That's the best option.