Offered for your consideration is a lovely iconic vintage ByPass ring. It is 18 K gold with Platinum surrounding the Diamonds. It is very difficult to estimate Diamond size in the setting but best I can do is @0.40 CT tw of gems. The ring is size 7.5 and weighs 2.4 grams. It can be sized by your local jeweler being careful to not disrupt the hallmarks.
This ring is European made and diminutive in size as often is the case. The face is 5/8" top to bottom. It would stand out in a stack of rings but certainly can be worn on its own. Excellent estate condition.