My luck has been rather amazing lately.
My secondary account has not been fortunate enough to breed ANY Ultra-Rares (no gemstones and the only treasure animal it has is from buying it on sale) but in the last 2 weeks that account has been lucky enough to breed not one, but TWO crystal unicorns (!). While my first unicorn was evolving I decided to throw another 4 elements into the breeding den and was shocked to get another 45 Hour timer. Whats even better is that I also managed to breed the limited Cranbeary between unicorns.
Then, this morning on my main account, in one of attempts at the Trick-or-Treent using a Crystal Unicorn/Aurora Pegasus I got my first gem hybrid 45 hour timer. Yay! So it's either Jade Kirin or Emerald Dragon.
Congrats to everyone who's been lucky in breeding lately!