1. SWEEPING GREEN: Your gals will be radiant in layers of silk chiffon. This J. Crew gown has a shirred strapless bodice with a modern notch detail, a sophisticated touch when paired with a flowing skirt ($365). 2. GEOLOGY NOTES: This Art Nouveau-style invite suite adds a dash of emerald and a whole heap of 1920’s flair. Steel Petal Press “Emerald Summer” letter-pressed invitations are available through Etsy ($10/ea). 3. POLISHED: Give your day a pop of color in the hue of the season with this “3 free” nail lacquer, formulated without the nasty stuff, from butter LONDON. Available at Sephora ($15). 4. SO DAPPER: Fox & Brie Haberdashery‘s handmade bow tie lends a sustainable touch to his look. It is made from 100% natural fabrics and is adjustable. Available through Etsy ($45). 5. SOMETHING FOR HIM: Carry your color theme to the groom and his guys with these folding Ray-Ban Wayfarers in punchy emerald and black frames with green mirrored lenses. Available at Shopbop ($165).