Contemporary naval school ring The images are in computerized 3D. Our pieces are made to order (we do not have ready delivery). Feedstock: 18k gold Sterling silver Stone: sapphire blue zirconia Rim Measurements: They are the sole responsibility of the customer (the measurements of the rings sometimes do not serve as a reference, as most of the time the left hand is smaller than the right hand). Our suggestion is to check the measurement at a jewelry store with the ring tool. Manufacturing and shipping time: On average 25 days beyond post office time. (This time is necessary due to the high degree of customization of our jewelry and due to orders prior to yours). Guarantee: Permanent on the raw material. Possible manufacturing defect. The warranty does not cover: Misuse by customer Wrong finger rim measurement informed by the customer. Follows: Guarantee certificate. Velvet Case. Gift wrapping. Questions we will be available through our WhatsApp (21) 967009062