BCBGMAXAZRIA White burnout halter gown size 4

BCBGMAXAZRIA Gown with winter white velvety burnout overlay on silk lining, black silk waist measures 13” laid flat, adjustable halter tie neck, 44” from center back waist to hem. Size 4 and suggest no larger than D cup. Gorgeous fabric! Missing the zipper pull in back so a safety pin works to adjust and then remove to wear. Worn once to a black and white ball, stunning, now I’m a size 6 and as you see I can’t zip it up all the way :(