My most storied accessory: A blue sapphire and diamond ring that was given to me by my ex-mother-in-law, [famed interior designer] Tessa Kennedy. Grace Kelly gave it to her as a gift.
Three rules to dress by: 1) Dress for yourself, not others. 2) Layer, layer, layer! 3) Be comfortable.
Style note:"I hate it when people overaccessorize. Always remember, less is more!"
Shirt $385, Isabel Marant Etoile; (212) 944-7900. Skirt $710, Isabel Marant; (212) 944-7900. Shoes Steven by Steve Madden, Wiersma's own.
All other clothing and accessories Wiersma's own.