The design and chain were lovely, but the energy was WAY too intense and abrasive, even a little painful for me personally. I tried a few times but just can't wear it though I was quite looking forward to doing so. The quality and presentation seems fine.
EDIT: I have since figured out that all black tourmaline stones that are rough cut like this are too energetically intense for me, so I have taken out some of my stronger criticism of this product. My experience was NOT necessarily specific to this product. I stick with tumbled tourmaline and that seems to work way better for me. If you're super sensitive you might also do better with tumbled tourmaline or a molder protection stone, like smoky quartz or many others. If you're not super sensitive this might work just fine for you.