This frock would be up there in my top 5. I bought it from the Paddington Antique Centre back in 2011. It's a European cotton dress, with pink ric rac & sweet chevron type stripes on the bodice, in pink & blue floral on a black background. I think it's actually my most expensive dress as well at $45, but it was worth every penny as I'm sure I'll wear it for years to come.
Vintage dress - PAC
Vintage bag - Op shopped
Turquoise necklace/brooch & bracelet - Vintage Treasures
Old brooch - my Mama-in-laws
Turquoise ring, shoes & belt - Retailk
50's Sunglasses - Ebay