A bag of 50 of these hand carved ice cubes costs $325. They are made by a California-based company that claims the cubes have no taste, so they don't ruin the taste of drinks, and they provide minimum dilution and maximum cooling. I suspect these inconveniences don't matter after the first two drinks.
If you are thinking about buying a bag of this overpriced frozen water, don't do it. Buy one of these amazing Japanese ice ball molds instead. It's cheaper and definitely way cooler.