Crispin Jewellery has dated this piece to the Edwardian era.
This is a superior high quality piece. Not reproduction
HALLMARKS
Not Hallmarked but tested as

MEASUREMENTS
Calibre cut Rubies; 1.5mm.
Rose cut Diamonds; 1- 2.5mm. These are a mixture of lovely old cut and rose cut natural diamonds.
Gemset plaque measures 22 x 10mm
Bracelet length; 18cm
Safety clasp
CONDITION
Good condition. Secure clasp, in good working function, signs of wear commensurate of age
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