Classic Basket-Set Square Ruby Stud Earrings (4mm Ruby) Classic Basket-Set Square Ruby Stud Earrings Silver (4mm Ruby) Total Carat Weight of Ruby is 0.8ct. Push Back Closure Free Certificate of Authenticity. Easy Returns - If you are not 100% satisfied with your purchase, you can return it for a full refund or exchange it within 30 days of the shipping date. Returns, including free gifts, must be unworn and in the state that you received them. Angara offers high-quality gemstone jewelry in a variety of appealing designs. All the gems are sourced directly from mines and manufacturers. The exceptional craftsmanship ensures that every jewelry piece will last for generations.