An extraordinary Diamond & Platinum (tested). Art Deco Demi-Bombe & Elongated Quatrefoil Ring Circa 1930

An extraordinary Diamond & Platinum (stamped). Art Deco Demi-Bombe & Elongated Quatrefoil Ring.

Rub-over set with four Old Round Cut Diamonds, forming an extended Quatrefoil design, surrounding the central Old Cut Diamond. An open strap work design throughout,  set with six smaller Round Old Cut Diamonds, Millegrain edged with tapering engraved foliate shoulders.

Accompanied by an independent Gemmologist's report assessing the natural Diamonds (in their mounts), as weighing approximately 3.35 Carats (total), of G - H Colour and VS - SI Clarity.

Currently sizes to: P 
 (7.5 USA equivalent).   
 
Circa 1930