Featuring a beautiful blue doublet gemstone encircled by a gold halo, the Signature Pendant Necklace is an easy-to-wear piece with a feminine edge. Gemstone: Iridescent Sky Blue (man-made). This soft blue synthetic gemstone is handcrafted as a doublet, a technique that lends it extra iridescence through a mother-of-pearl backing. Metal: DD Signature Brushed Gold Plated Over High-Quality Brass. Length: 14" - 32" (adjustable with a silicon slider) Gemstone Diameter: 15mm