Brilliance and value are guaranteed with our Tennis Necklace in Lab Grown Diamonds, a timeless style and the most iconic piece in any jewelry collection. Our Tennis Necklace in Lab Grown Diamonds is set with 5.75 or 6.5 ctw lab-grown diamonds, the necklace comes with a cable chain, available in lengths of 16" or 18". * This item requires an estimated 2 business weeks for production before shipping. * Custom items are final sale and cannot be returned or exchanged.