Exhibit Antiques has dated this piece to the 1800s.
A magnificent pair of Scottish Georgian Prussian glass decanters dating to c1825.

They sit in wide poring rims with three applied diamond cut neck rings. Slice cuts to the shoulders with alternating panels of diamond, prism, pillar and split cuts below. Star cut base.
Made by John Ford at the Holyrood Glass works in Edinburgh, Scotland between 1825-1835.

You can see examples of Ford decanters and cutting styles on page 251 of "The Decanter, An Illustrated History Of Glass from 1650" by Andy McConnell
You can also see them on page 167 of "From Goblets To Gaslights, The Scottish Glass Industry 1750-2006" by Jill Turnbull.

Without doubt, some of the best cut decanters we have seen in the last 20 years. They have been in the same collection since 1968 and this is the first time they have been on the market since then.
Date & Origin
England, c1825
Condition
Excellent, no chips cracks or restoration, very minor residue at the base of the decanters.
Dimensions
Height: 27.5cm Diameter: 11cm
Exhibit Antiques has dated this piece to the 1800s.
Specialists in 18th & 19th century antique glass
You can view the stock and full dealer information on the Exhibit Antiques Profile Page