Gemstones can be carved, faceted, tumbled, or cabbed. Transparent stones are generally faceted. The symmetrical series of planes cut at slightly different angles refracts light and makes the stones sparkle. Opaque gemstones are usually cut as cabochons, which are polished domes with flat or rounded backs. Phenomenal stones that present special effects, such as a star (asterism) in sapphires, or a cat's eye (chatoyancy) in moonstones, are also cut as cabochons.
Return to Collection Home