Vintage Engagement Ring 18K WG 0.40ct Old European Cut Diamond circa 1930s

Very sweet 18K white gold setting with 0.40 carat old European cut diamond. I color, VS1 clarity center stone. Bead set single cut round side stones add approximately 0.12ct. Nice quality hand engraving & detailed numbered setting. Center stone measures approximately 4.5mm wide, with a tapered 1mm shank size 5 with ability to adjust. Circa 1930’s.