dome shaped cut most commonly used in sapphires. Used to display asterism in star sapphires, cabochon cuts are applied to gems whose clarity is not ideal for faceting. Well-cut cabochons should display good symmetry with smooth un-cracked domes.

Cabochons - Unfaceted gems usually having oval shapes, although they may be round, square, heart-shaped, tear-drop shaped, or of many other shapes, but usually having a completely rounded surface.