Concord Jewels

Beyond the Radiant Citadel drift the Concord Jewels, which connect the city to its founding civilizations. Each Jewel is a building-sized vessel capable of holding hundreds of people and tons of goods. Though the Jewels take a variety of shapes, their interiors are similar. A cylindrical core holds containers for goods, including livestock. Surrounding the core is seating for passengers. The Citadel employs official operators called Clavigers to pilot the Jewels.
  Each Concord Jewel is linked to one of the civilizations that founded the Radiant Citadel. A Jewel unerringly travels between the Radiant Citadel and the homeland of the Jewel’s linked people. Even if the Jewel’s people have migrated to another world on the Material Plane, the Jewel finds its way to their current home. While not in use, the Concord Jewels orbit the Radiant Citadel in an incandescent constellation. Each Jewel corresponds to one of the founding civilizations and resembles a giant gemstone of the type noted for that civilization on the Concord Jewels table.
  Concord Jewels Civilization Jewel Akharin Sangar Turquoise Atagua Yellow Quartz Dayawlongon Serpentine Djaynai Water Opal Godsbreath Jasper San Citlán Fire Opal Sensa Amber Shankhabhumi Moonstone Siabsungkoh Ruby Tayyib Sard Tletepec Obsidian Umizu Pearl Yeonido Amethyst Yongjing White Jade Zinda Bastite