It's September, and the Sapphire Dragon is the gemstone dragon of the month. What is the best combination to breed it, and what is the incubation time?
Per the Dragonvale wiki, to get a Sapphire Dragon you must breed a Rain Dragon with a Mountain Dragon. The incubation time is 30 hours for the regular Breeding Cave/Epic Breeding Island. If you have the upgrade to either breeding location the time is reduced to 24 hours. The Sapphire Dragon is only available in September, and requires that you are level 14 to breed it.