There are some other possibilities beside a lipstick tube. Since it does have Rhinestone jewels at the end, more than likely it was made for a woman, and it is the size that would fit inside of a purse. Here are some of the other items that are shaped/made the same way: #1 Vintage pill tube container. #2 Vintage lint brush. #3 Vintage perfume tube. #4 Victorian smelling salts.
One of the easiest ways to find out, is to drill a tiny hole in the end, then run a small wire inside to see if there is lipstick at the base or if there is any powder residue from pills or the smell of perfume or sachet.
I'd like to see some close-up pics of the hex base and the tip. Interesting find, Breezie
BTW, lipstick tube bases are not all round; they were made square and other shapes to prevent them from rolling off of a vanity table and to sit up easily. The pic below is a vintage tube with a larger square base.
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