I see that Lambertson's dip collection includes some Emerald Toucanet crosses and also Malachite Sunbird, both 2013 intros.
@profesora, you gave me seeds from a cross of Emerald Toucanet x Malachite Sunbird and this year a lot of them bloomed. Going from memory alone right now because I am at work, I would say that one of the 23 plants from that cross looks a lot like Ringed Emerald. I will have to look at my pictures when I get home. Next season will be different because I now have all of the plants labeled so I can keep track of them.