Crispin Jewellery has dated this piece to the Edwardian era.
HALLMARKS
Not hallmarked but tested as such

MEASUREMENTS
Rose cut Diamonds; 2-2.5mm.
Swallow diameter; 25 x 25mm
Pearl; 4mm
Diameter; 52 x 25mm
Lovely functioning C clasp
Diamond content spread approx 0.85ct but rose cut diamonds are flat to the underside and so weighted carat weight is likely less
WEIGHT
5.2g
CONDITION
Good condition, could benefit from a light clean. Clasp in very good working condition.
Crispin Jewellery has dated this piece to the Edwardian era.
You can view the stock and full dealer information on the Crispin Jewellery Profile Page