Hydran's egg (Australian boulder opal) comes from tropical waters. As an ocean dragon, he'll be persistently drawn to the sea and its shores. Anyone who loves the ocean would be a great companion for him!
Please see the other photos and video to view the color changing properties and the size of the opal against the band on a finger. (This opal was particularly hard to catch the colors on with a camera because they shifted so much!)
The finished ring will include a sterling silver bezel around the opal, as seen in the example photo.