Ruby bubbles?

Dear Steve,

Frankly speaking, I am not sure… The quality of the image could be better.
Usually, when a ruby is glass-filled, the bubbles are substantially more visible. In this case, it doesn’t really look like a glass-filled ruby. I’d say maybe some fissures have been filled (healed), but that is a widely-accepted treatment method in the gemstone industry. Of course, the price will be lower compared to an untreated ruby. However, fissure-filling is a much less intrusive gemstone treatment method, and when this method is used you’d still get a ruby, not some cheap junk that a composite ruby is.

Sincerely, Freddie