Crispin Jewellery has dated this Edwardian Diamond Heart Brooch to the Edwardian era.
HALLMARKS
Not Hallmarked but tests as high carat reverse and likely silver front.

MEASUREMENTS
Old cut diamonds; 1-2.5mm
Total diamond content 1.10ct+
A beautiful subject
Brooch diameter; 47 x 17mm
The brooch has a good functioning c clasp
Supplied in original leather tooled box
CONDITION

Good condition signs commensurate of age, an excellent piece. A very high quality piece. The end smallest diamond has a tiny chip visible under a loupe. Diamonds bright, very white, some with colourless inclusions seen with a 20x loupe
This will have a considerable insurance valuation
THIS REALLY IS FAR BETTER THAN THE PICTURES DEPICT
Crispin Jewellery has dated this Edwardian Diamond Heart Brooch to the Edwardian era.
You can view the stock and full dealer information on the Crispin Jewellery Profile Page