Is the amethyst real?

No. At this tier the purple stones are glass or synthetic crystal. Real amethyst in a steel bracelet would be sold as a gemstone piece with a stated carat weight and clarity.

Will the steel tarnish or turn my wrist green?

Stainless steel itself does not tarnish or leave green marks the way plated brass does. The risk is the plating or finish on any accents, and skin reactions in people sensitive to nickel.

What wrist sizes does the adjustable chain fit?

The adjustable clasp lets you set the length, so it covers most adult wrists. Check the listed size range before ordering if your wrist is very small or large.

Can I wear it in the shower or at the gym?

Stainless steel handles water and sweat well, but repeated exposure dulls the crystal settings and can loosen the clasp. Take it off for swimming and heavy workouts.

How does it compare with a plated brass bracelet?

Steel holds its color longer and is more durable for daily wear. Plated brass can look brighter and cost less, but the plating wears through and exposes the base metal.