This is a rare antique lachrymatory or tear catcher from the Georgian period, around 1820. While these are usually called tear catchers or lachrymatories, they are actually perfume flasks that were made as disposable bottles for transporting Rose Water or Oxford Lavender water. Once the purchaser got it home she would decant the perfume into her own scent bottle and often these were thrown away.
This example is in clear cut glass with gold gilt decoration. It is 7 inches long and about 1/2 inch wide. It is missing its stopper (not at all uncommon) but aside from some wear to the gilt decoration it is in very nice condition.