They are bright and sparkly and display more fire than the best grade of diamonds as shown in the table below. The only small drawback is that it is not as hard as natural diamond. We will ship all items within 7-10 business days of purchase during the work week (M-F) excluding holidays. If you order on Friday, your order will be shipped the following business day Monday. US delivery may take up to 1-2 week after product ship from India. It all depends on the local office. Once the order leaves our location, we have no control over delivery times. Please do not leave a negative feedback as a way to communicate. Any rating given to a seller can neither be changed nor modified. So better communicate for faster resolution to any disputes. Please help us maintain a 5 Star DSR rating in all 4 r.