The Celestial Blue Sparkling Moon and Sun Ring you described sounds like a beautiful and fashionable piece of jewelry. With its summer-themed design, it adds a touch of celestial charm to any outfit. The ring is crafted from 925 fine silver, which is commonly known as sterling silver. Sterling silver consists of 92.5% pure silver and 7.5% other metals, usually copper, which adds strength and durability to the jewelry piece. The ring features a stackable design, allowing you to combine it with other rings to create a unique and personalized look. The celestial blue sparkling moon and sun design adds a sense of whimsy and mystique to the ring, making it a great choice for those who appreciate celestial motifs.