A fabulous large Art Deco black opal and diamond necklace.
 
The necklace with a stunning cabochon oval opal with a strong play of blue and red in a simple double-claw setting open to the back allowing both sides of the opal to be seen.
 
The opal is suspended from a triple old-cut diamond drop, the diamonds in elegant platinum rub-over settings typical of the art deco era.
 
The diamonds are attached to a fine trace chain with original bolt ring.
 
Era: Art Deco, c.1925 - 1940
Measurements: Opal estimated 10 carats,
Total diamond weight estimated 0.7 carats,
Pendant 4.1cm in length, 1.5cm at widest point.
Chain 44cm long
Hallmarks: Unmarked - tests platinum