Art Deco 2.75 CTW Diamond Sapphire Platinum Octagonal Ring GIA Circa 1930 touchstone collection 25 carat with J color

25 carat with J color with SI2 clarity

Remainder of ring is pavè set throughout by additional round brilliant cut diamonds

With French assay mark and 750 stamp for 18 karat gold

Alternating high polished gold and twisted silver links

Signed REGAL

Art Deco 2.75 CTW Diamond Sapphire Platinum Octagonal Ring GIA Circa 1930 touchstone collection 25 carat with J colorCentering an old European cut diamond weighing 1. 88 carat M color with VVS2 clarity Set low in a cushion shaped head with an octagonal surround accented by milgrain and foliate With a calibr cut sapphire half halo weighing in total approximately 0. 50 carat well matched royal blue Accented by old European and single cut diamonds weighing in total approximately 0. 37 carat eye clean and white Tested as platinum Circa: 1930s Ring Size: 5 1 4 & sizable