Like the calico princess, the sapphire gem is also from hoover's (although, these czhech hybrids may be available elsewhere with similar names). Here are some pictures of the two sapphire gems in with the amberlinks. They were about 10 months when this was taken. They started laying right at 18 weeks and laid very large light tan eggs. They were better in the heat than the amberlinks (bred from hoover's isa browns). They were not as calm as the amberlinks, who would actually come up when I was working and inspect my tools! But they're not flighty by any means. I had to sell the flock due to a family situation, but I'd get these birds again in a heartbeat!