Yellow Gold Tone Sterling Silver Cubic Zirconia Journey Climber Stud Earrings These earrings are made of solid sterling silver, featuring high quality cubic zirconia stones. Our cubic zirconia is bright and clear with an unmatched sparkle, so it will easily convince others it's the real thing. The total metal weight of the earrings is ~ 2.3g. The length of the climber is 25mm (1 in).