Inspired by the architecture and colors of the Grand Palais in Paris, this layered gem necklace design is framed in sterling silver. Sterling silver Faceted Rectangle Layered Gemstones: Red Doublet (Lab-Created Ruby and Mother of Pearl) White Doublet (Milky Quartz and Mother of Pearl) Blue Triplet (Milky Quartz, Green Agate, and Mother of Pearl) Our Doublets and Triplets have been layered to achieve a unique color and enhanced surface durability. Avoid chemicals, cosmetics and ultrasonic cleaners as well as contact with water, soap, steam and extreme humidity. Approx. 16", 18", 20" Crafted in America using the world's finest materials.