moi products are all handmade with care and love. Each setting is first handcrafted based on the design that you have selected. At the same time, moi experts hand pick the highest quality moissanite stones to pair with your ring. Every moissanite from moi is guaranteed to be of D color (colorless), VVS1 (very, very slightly included) to IF (internally flawless) clarity, and ideal/excellent cut.Each stone is inspected by eye and using ASET imaging to ensure the best gemstone properties possible for each stone used. Then the stone is mounted into the setting, undergoes polishing, cleaning, and other final touches before being sent out.We also offer a lifetime guarantee and support for every ring we sell! For more details please see "Our promise to you".