Hi and welcome.

I'm pretty sure these are contemporary Chinese glass. You will probably find similar on the alibaba site that sells it.
So, you haven't got treasure, but you didn't really suspect you had.
You do have a couple of quirky vases you like and that's all that matters.

If you want to light them from inside, I have been told that you can get battery operated strings of fairy lights from supermarkets which you can put inside a vase with a small top like these, and they'll light the whole body up, not just a spot.
I've seen it in operation, but only from the outside. It looked good. (in a very tall, orange piece)