David Aubrey Yellow Stone Purple Acrylic Necklace16" necklace with yellow stone, acrylic, and brass. 3 inch extender. All pieces are made to order and handcrafted in New Jersey by skilled artisans who share our passion for quality and originality. Each piece is unique so stones and glass may vary in shape, size, and color. Stone inclusions may be visible to the eye and are considered a part of their beauty. Our jewelry consists of plated metal, which may darken or tarnish over time with normal wear.