A Fine Art Deco Diamond Ring

A platinum ring set with an old transition cut diamond of estimated weight 1.17ct graded as colour H-I clarity VS in a hexagonal setting on a raised and pierced coronet set with 14 old cut diamonds all to an engraved shoulder and band marked inside band ''plat''.
Total Estimated Diamond Weight: 1.43ct
Total Weight: 4.6g
Age: C1920