These are Grade A, genuine Aquamarine Crystals! Aquamarine is the birthstone for March. They're the perfect for any time of year. These stones are absolutely stunning! Beautiful light blue. These gorgeous blue Aquamarine crystals measure approximately 6 mm each. This ring is wrapped in your choice of 14kt Gold-Filled wire |12kt Rose Gold-Filled wire | Sterling Silver wire | or Fine Silver wire. This ring can be made in any size, from 2-13, whole or half sizes. Beautiful little Aquamarine ring.