There are 4 different levels of Purple Locked Chests. Although they look the same, depending on where they come from, their contents will vary. You can get these Purple Chests from Life Flowers, Living Stones, Fallen Stars, Dragon Trees & merging Amber, Prism Flowers & Treasure Chests. As well depending on where they come from the cost will vary to open the chest even though they look identical. (Refer to examples below)