Crispin Jewellery has dated this piece to the 1920s.
HALLMARKS
Not Hallmarked but throughout tested as platinum including the chain
MEASUREMENTS

Larger old cut diamonds ; 4.mm. Stunning Si1 and H-I in colour- absolutely superb. Approx 0.35ct and 0.30ct each
Further diamonds; 1-2.5mm
Total diamond content; 1.20ct
Necklace diameter; 49 x 40mm
This has a removable brooch fitting and can also be worn as just a brooch

Stunning perfect white enamel detail bordering the diamonds
Ornate platinum chain 16 inches
Total weight 12.3g
CONDITION
Superb condition, no signs of wear. This is an absolutely stunning original piece of jewellery that is a one off.
Crispin Jewellery has dated this piece to the 1920s.
You can view the stock and full dealer information on the Crispin Jewellery Profile Page