Vintage 1990s designer Oscar de la Renta silk chiffon dress. This diaphanous strapless gown has the bodice composed of ruching with a satin bow. The fabric is delicate green and pink chiffon. Very good  vintage condition. Signs of wear include some minor picks in the fabric and minor spots. 
 
Modern size equivalent: 2, 4
 
Tagged size 4
 
Measurements:
Bust: 32-34" 
Empire waist: 28"
Hip: Free
Length: shortest 22", longest 52"