BestPysanky Silver Tone Metal Swirl Egg Stand Holder 1.75 Inches X 2 Inches

Please tell me the diameter of the circle that actually holds the egg. I've got a very small egg to hold and don't want it falling through.

Is this stand large enough for a large ostrich egg?

Would this fit an emu egg? This is a neat stand, it'd be a bummer if it's the only size.