Previously, I found some bubbles in the Ruby. I am not sure what they are but I turned the rubby over and look at the culet of the ruby. Those bubbles seems to run from the crack of the under side and extended to the interior the ruby.
Some Backgound about the rubies:
The ruby is pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). The red color is caused mainly by the presence of the element chromium. The ruby is considered one of the four precious stones, together with the sapphire, the emerald, and the diamond. Rubies have a hardness of 9.0 on the Mohs scale of mineral hardness. Among the natural gems only moissanite and diamond are harder, with diamond having a Mohs hardness of 10.0.
This particular ruby is a Burmese ruby. It came from northern Myanmar. some of the world’s finest sapphires, rubies and spinels have been found in the region.