Touch of Time Antiques has dated this Georgian Silver Paste Brooch to the Georgian era.
The old hand-cut facets give the stones a lively sparkle, while the black dots add the characteristic depth associated with Georgian paste jewellery.

The closed-back stones are set in silver, tested as sterling. A substantial and decorative brooch, measuring 35 mm across and weighing 11.68 g.
Date: circa 1820–40
Materials: Silver, tested as sterling; black-dot paste

Size: 35 mm across
Weight: 11.68 g
Condition: excellent antique condition, no paste replacements or damage, slight age-related wear to the reverse, the pin and the clasp are later addition/replacement.
Touch of Time Antiques has dated this Georgian Silver Paste Brooch to the Georgian era.
You can view the stock and full dealer information on the Touch of Time Antiques Profile Page