Gem dragon

Gem Dragons are aloof, solitary, and self centered. They spend most of their time on the Inner Planes.

Amethyst Dragon
Amethyst dragons are wise and regal. They may be found serving as intermediaries between warring dragons, and even humanoid civilizations. An Amethyst dragon has lavender skin, and its scales that are shaped like naturally formed mineral crystals.

Crystal Dragon
Crystal dragons are the friendliest of the gem dragons. They are always curious, so they enthusiastically converse with willing visitors. Crystal dragons are fond of the Elemental Plane of Air, but they may sometimes build ice palaces atop high, cold mountain peaks on the Material Plane.

Emerald Dragon
Emerald dragons are inquisitive about local history and customs. Their knowledge of particular areas of often beyond that of the best sage. The dragons are very paranoid, developing relationships with them is often difficult. When not on the Inner Planes they prefer to stay near partly inhabited areas on the Material Plane, but keep their presence unknown.

Sapphire Dragon
Sapphire dragons are territorial, especially towards other dragons on the Elemental Plane of Earth and the parts of the Material Plane that they claim as their own. These dragons are anti-social towards all beings, but view the evil races of the Underdark to be their enemies.

Topaz Dragon
Topaz dragons are unfriendly and selfish. While not malevolent, their behavior makes dealing with them unpleasant and dangerous. They spend their time on the Elemental Plane of Water, but make brief trips in tho the Material Plane into lairs on secluded beaches or caves below the waterline. Their lairs are completely dry.