SAWNZC Ice Cube Trays Diamond Ice Cube Molds Reusable Silicone Flexible 4 Cavity Ice Maker for Chilling Whiskey Cocktails, Funnel Included, Easy Release

I like the fun idea of different shapes for the ice cubes, but these don't fit together very well and there is leakage around the edges so you get ridges where the two halves fit together. You can't really stack them as if there is pressure on it, the water comes up through the fill hole. It takes a little practice to get it right, but I can't seem to get it so there is no ridge. Fortunately, it's only water, so clean up is easy.

Might be better ones on the market rips easily don’t waste your money

These do not seal well, resulting in ice cube that don't resemble diamonds or any other gem. I planned to return them, but my brother did not notice them in the box I had them in and through them away. If purchasing them for ice, do not waste your time.

I'm not getting perfect looking diamonds and this tray is hard to fill :/. I've purchased other shapes from other stores that seemed to work better. Maybe it's the size or the way to fill it that doesn't quiet work. I'll look into those that you fill from the top instead of this 'sandwich/press' or whatever it's called.

The ice cubes were smaller than expected, the definition of the skull in the drinks was not good, a lot of work to make and remove from the mold for the end result. My suggestion is to buy a larger mold.