How should I display the "Deck Crystal" I purchased so that it reflects light in my studio the same way they did in old ships?

I purchased a clear deck crystal- like this one and want to see how it worked in the old ships by putting it in my studio.

Just placing it on the windowsill did not seem to do anything even when the light hit it.

Any suggestions for how to reproduce the effect that it would have on the old ships of the 1800’s?