Red helm + Red Armor + Red Pet = Red Ring
Blue helm + Blue armor + Blue pet = blue ring
Green helm + Green armor + Green pet = green ring
Golden Helm + Golden Armor + Mitas Pet = gold ring
Black Helm + Black Armor + Black pet or mitas pet = black ring
mitas set from platinum store gives no dragon ring, the combinations above are only possible
p.s mitas will give set bonus and ring for all except mitas dragon armor from platinum store.

kthxbai