Exhibit Antiques has dated this piece to the 1750s.

Large scale facet cuts to the base of the bowl transitioning into fine hexagonal cuts on the stem. Conical foot with snapped pontil
Date & Origin
England, c1780. Period of Geoge III
Condition
Excellent, no chips cracks or restoration. The bowl has a small thin internal annealing line which is approx 1cm long and does not come to the surface. Insignificant and part of the manufacturing process.
Dimensions
Height: 18.5cm Rim diameter: 8.5cm, Foot diameter: 9.1cm
Exhibit Antiques has dated this piece to the 1750s.
Specialists in 18th & 19th century antique glass
You can view the stock and full dealer information on the Exhibit Antiques Profile Page