AgAu Jewellery has dated this piece to the 1930s.

Very Pretty Art Deco 18ct gold blue zircon diamond ring
Metal: 18ct White Gold
Stones: 1 Blue Zircon, 6 Diamonds
Stone Weight: 1.75ct Blue Zircon, Diamonds 2 x 0.10ct, 4 x 0.05ct - 0.40ct
Hallmarks: Unmarked, but tested for 18ct gold
Measurements: The face of the ring measures 17mm x 7.5mm
Ring Size: UK Ring size O 1/2
Weight: 3.7g
Condition: This beautiful art deco blue zircon and diamond ring is offered in very good condition.
AgAu Jewellery has dated this piece to the 1930s.
Agau jewellery offer an extensive range of 9ct and 18ct gold jewellery.
You can view the stock and full dealer information on the AgAu Jewellery Profile Page