It was listed by Crispin Jewellery. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.
Crispin Jewellery has dated this piece to the Edwardian era.
This piece is most likely made in France
HALLMARKS
Not Hallmarked so tests as

MEASUREMENTS
Central Old cut diamond; 2.5mm.
Diamond clarity; Si2, immaculately eye clean
Diamond colour; J
Old rose cut diamonds; 1-1.5mm
Calibre cut sapphires; 1mm
Ring head; 13 x 8mm
WEIGHT
1.9g
CONDITION
Good condition, wear commensurate of age. A beautiful and sought after traditional design. Not a reproduction.
RING SIZE
GB N US 6 3/4
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