Crystal Vase early Empire, Bronze mount

Rare vase in heavy cut Crystal ( A pair, but unfortunately one is cracked quite entire and présentable as a pair)
Most probably Le Creusot or Imperial Glass workshop of St Petersburg, circa 1800
The lovely bronze fixture period ormolu with antiques profiles and lowes’heads is attributed to Thomire or Galle
We do not success to found vases to compare by quality and elegance in available documentation