February 11, 2016 1:29 PM Joan Collins glitters at store opening February 10, 2016. Alexander Tamargo Courtesy DuJour By Madeleine Marr mmarr@miamiherald.com Ravishing. if you don’t know what it means, look it up. You may find a picture of Joan Collins next to the definition. Dressed in an elegant, ruched black dress and strappy high heels, Collins, was the guest …