Is titanium good for sensitive ears and noses?

Yes. Titanium is widely recommended for new and sensitive piercings because it is lightweight and low in nickel, the metal most people react to. It is a safer bet than gold-plated or cheap steel studs.

How is this different from a flat-top nose stud?

The top here is a small ball, which sits a little higher and reads as a round dot. A flat-top stud sits flush and looks more like a tiny disc. Both are plain titanium in this line.

Does it come with a gem?

No. This set is deliberately gem-free and uncolored, so there is nothing to fall out or fade. If you want sparkle, look at gem-set titanium studs instead.

Will the ball top fall off?

The ball is the decorative top of the stud, not a separate screw-on piece in most nose stud designs. Check that the top is firmly attached when it arrives.

Is it safe for a fresh piercing?

Titanium is a common choice for healing piercings, but confirm the gauge and post length match what your piercer recommends. Plain, uncoated metal is the safer option during healing.