The black jade earrings you mentioned sound exquisite! Handmade earrings with a screw back design are not only beautiful but also secure. It's great to know that they are made from 20k real gold and come from Myanmar, which is known for its high-quality jade. The certificate of jade adds to their authenticity and value. The original price of $560 reflects the quality and craftsmanship of the earrings. And now, with a discounted price of $450, they offer even more value for money. It's a wonderful opportunity to own a beautiful piece of jewelry like this.