Pearls are expensive, around $1,500 (that's a conservative guess!) for a 16" necklace. Fashion/costume pearls however are perfectly acceptable. Jackie Onassis wore her fake pearls with pride. As long as you look like you can afford the real deal, few will tell the difference.
Wear them anytime-whoever said that pearls and pajamas don't go? Lounging around in silk pajamas, wearing strings of pearls, eating chocolates and watching old movies. Now that's style!