An Art Deco diamond engagement ring, the center old European cut diamond flanked by tapered baguettes in a surround of single cut diamonds, in platinum. Shreve & Co., stamped #B12135. Old European cut diamond 1.61 ct., D color, SI1 clarity (GIA # 5101851484); atw. 0.60 ct. tw. single cut and tapered baguette cut diamonds.