DSS does exist and the symptom flare up after 7 months for me. My finger sz is littler smaller than you... sz 4 and size up 4.25 for 2.0ct round . I got up May of last yr then in Nov looking for 2.87ct... i don't know what happened... somehow the rock seems to shrink to my eyes... yes... put your ring away for a couple wks it does help with DSS.
To answer OP... since sz 5 for finger.... solitaire 1.85ct-2.50ct is nice size for finger coverage.
To answer OP... since sz 5 for finger.... solitaire 1.85ct-2.50ct is nice size for finger coverage.