Can scratches be removed

Can you polish out gemstones. To have it look better to add to a ring or just to keep in your collection.

Indeed scratches can be removed. Just be careful not to accidentally round off the facets in the process unless you like that look.

What kind of stone is it?

Ruby

The only way to polish Ruby is on a faceting machine. The flat lap insures that only the facet you are working on is polished, however it is ideal to polish all of the crown facets to have the stone look correct