Lab Created Diamonds surround necklace and earrings. Base: Sterling Silver. Yellow-White Gold Chain attached to necklace for adjustment around neckline. Necklace opens/closes with a clasp. Earrings are for pierced ears. Bombay Diamonds is BombayFashions newest collection of the highest quality of lab created diamonds. Diamonds are comparable to authentic diamonds. Round & Princess cut diamonds are handcrafted into each piece. Baguette Diamond setting is used on some necklaces as well. BombayFashions guarantees each set to 100% Sterling Silver authenticity.