The earrings are made of 14k yellow gold and they hang 2 1/4 inches from top to bottom. The posts and ear backs are also 14k gold. The posts are normal and not threaded. The earrings weigh 1.4 grams. I will provide a earring box. Any discoloration on the top part of the earring is just the reflection of my cell phone cover. They are gold and well polished.