I'm gonna give a slightly different opinion but along the same lines.
I don't think she's laying down, I think she's standing up and assistants are probably holding the dress out, if she was laying down, the dress on camera left would be creased as it rests on her arm but it's not it's straight and flat. Also the shadow from her arm camera right isn't consistent with her being flat on the floor, her arm would be nearly touching the floor so the extreme angle required to get the shadow that high above her arm is unlikely and doesnt fit with the shadows in the rest of the image.
However, I would also suspect ringflash/gridded beauty dish. And contouring dodge and burn is definately there (adding to the difficulty in guessing the lighting obviously), especially on her face and sides of her head.
Be careful who you light like this, without a stunning model you'll make this shot look horrific. Monster lighting isn't flattering for most people (in this case it is, and it's an awesome shot)
OP - to your initial question, a ringflash (a proper one not a macro ringflash), beauty dish, octabox, even an umbrella can create this lighting. Try them on axis with the camera, slightly higher (before trying lower, as per your example), and feather them downwards slightly. Now grab some black reflectors and stick them either side of your model's face, it will excentuate the shadows either side. Do not use fill. Perfectly doable with one light

have fun