Any gemologist to identify untreated ruby corundum?

This ruby was bought at a bargain price by one of my clients at 5000 USD. I took a picture of it and came across the below website File:Induced liquid inclusions in quench-cracked synthetic flame fusion ruby.jpg - The Gemology Project. I am not too sure if I am correct to disclose to her that it is hardly a bargain buy. She had been ripped!

That looks like a similar process used to create Dragon Vein Agate.
Very pretty but not valuable.