Necklace is approx 92 grams. 31 inches end of pendant to end of necklace. Necklace alone hangs 28 inches and pendant is 3 inches Earrings weigh approximately 5 grams and ring approx 4 grams
Welcome to Turquoise People. Beautiful necklace, you might contact this seller and get an idea of their asking price. Their piece is a little different but I imagine same family. I think of something like this around $1200. Etsy, eBay are probably your best places.
What a lovely set, hummingbirds are quite popular, I hope you can sell it easily.