This best-selling Marina Lace Cocktail Dress drops from $129 to $79.99 with code X663FTU220 at Macys.com. They're offered this dress for $179 in the past, and it's the lowest price we found for this dress or any similar Marina one. It comes in 6 colors (Gunmetal is pictured) and over 185 Macy's reviewers have given it a perfect 5 out of 5 star rating. Pad your order to $99 for free shipping (otherwise it's $9.95). Sales tax is charged in most states.