champagne and gold prom dresses Elegant Long Mermaid Dress with Sleeveless Beading – Newinlook Back Details Glitter Prom Dresses V Neck

Just picture this floaty beauty for a dreamy mountaintop ceremony or romantic garden venue

Black Tie Optional Shoes [Suit] If youre wearing a suit, we suggest classic cap toe Oxfords in black calfskin leather, polished to a high shine

See below for 20 picks that'll win you best-dressed every single time

This chic wedding dress features a stunning A-line silhouette and long sleeves

Princess Margaret posting for an official photo in 1934 Princess Margaret and Princess Elizabeth in 1936 Princess Margaret in 1940 Princess Margaret in 1943 Dressed up for a production of Aladdin at Windsor Castle Princess Margaret posing for a German magazine in 1951 Princess Margaret at a wedding in 1951 Princess Margaret at the races in 1955 Princess Margaret at a film premiere Princess Margaret at the theatre in London in 1952 Princess Margaret at the airport Princess Margaret in the Caribbean in 1955 Princess Margaret at a garden party during her African tour Princess Margaret in East Africa in 1956 Princess Margaret wears a white dress in 1956 Princess Margaret on her wedding day in 1960 Princess Margaret at a film premiere in 1960 Princess Margaret in Jamaica in 1962 Princess Margaret with her family at her daughters christening in 1964 Princess Margaret in the Bahamas Princess Margaret in 1974 Princess Margaret at the races in 1973 Princess Margaret at the ballet in 1982 Princess Margaret with Princess Diana in 1981 Princess Margaret celebrating the Queen Mothers 90th in 1990 Princess Margaret at the Royal Caledonian Ball in 1983 Princess Margaret with the Queen in 1995 Princess Margaret with the Queen Princess Margaret in 2000 for the Queen Mothers 100th birthday Penny Goldstone is the Contributing Fashion Editor at Marie Claire UK