The stone doesn''t look good to me. But, the price is very low. You may want to do some searches on Radiants here and see what stones are catching your eye. Then look at those specs. You might find threads that give you a name of a company that does really great radiants.
I have a pear stone that has a really big table like that radiant. It is nearly fireless. IT takes a lot of direct sunlight to bring any life to the stone.