Heaven and Earth Collection jewelry materials include gold, 14k gold-filled, sterling silver, diamonds, cubic zirconia, and 22k gold vermeil with sterling silver underneath. All the materials we use are of the highest quality, and H&EC prides itself on its craftsmanship and custom made pieces. All fashion jewelry is hand made and assembled in the USA. Due to choking hazards, all children jewelry is intended for ages 5 and up.