French Art Deco emerald and diamond geometric cluster ring

French Art Deco emerald and diamond geometric cluster ring in platinum. Centred with a 0.96ct square step cut emerald in a four claw setting, set to either side with two round Old European cut diamonds in square collet settings, further decorated to top and bottom with vertical chevron settings with eight rectangular baguette cut diamonds in channel settings, to a stylish cluster design with bespoke settings and openwork gallery, flanked to either side with raised trumpeting shoulders which smooth to a solid shank. Estimated total diamond weight 0.80cts. Hallmarked platinum, French.