I follow a gemologist on TikTok and his video is the inspiration behind this post. In the video, he explains the difference between an opal and an opal doublet. I've wrapped both and decided to share an opal doublet that I have yet to wrap.
I actually have two--found the other one after I edited the photos and uploaded the video tagging him in it on TikTok, lol.
The first photo is with the zoom magnified a bit to hide the shadow of my hand. The last two photos are shot with a macro lens just to add a bit more focus on the detail.