These
Urns can be found in profusion in Graydon-Stannus, the worst reference that could be hoped for

Continuing with that reference you also get the grey tinge and a Cork or Waterford attribution of 1780. Interestingly in the same section Honey pots are also shown and these clearly comes into the Urn category. All the examples shown are cut and the flutes around the top are considered an early Irish feature that got smaller, deeper and sharper over time. If course if these had passed through her hands they probably would have a lot more cutting,

Davis, English & Irish Glass, shows less ornately cut
Urns & covers and states that they were made in France, England and Ireland with the French being of a lower quality. His examples have a more ornate stem. One has the flutes matching the edge of the cover as yours. Dates as Adam period c1770. The stars he describes as
sprigs cut with an engraving wheel not stars which he shows as more elaborate. The plain stem would also suggest pre 1800 (at least for glasses) and he suggests that identification to a glassworks or England/Ireland is seldom possible apart from specific techniques.
So to summarise, maybe Irish, English or French, probably earlier than 1800 and maybe Swedish.