Gemstone Dragons are neither from the human realm or the dragon realm. Gemstone Dragons can only be bred at a time when the realms are joined through the Gemstone Nexus. But this dragon of two worlds has an ability no other dragon does: the ability to breed other gemstone dragons instead of craft them!
Gemstone Dragons are so mysterious that even the wisest dragon scientists disagree on their origins. Some say that the Gemstone Nexus is a man-made construction, designed by Klaus. Others say that the phenomenon occurred naturally. But the very wisest are just happy that they exist and they can breed all these fancy dragons!
Gemstone Dragons are embedded with Gemstones of all shapes, sizes and colors. One jewel appraiser appraised an adult Gemstone Dragon at several million; it was originally twice as much, but the appraiser halved the estimate after the dragon sneezed and lit him on fire.
Epic Gemstone Dragons are constantly chased by poachers. The dragons are immensely valuable, but who would want to steal an enormous dragon? Only the very brave or the very foolish - usually both.