Is the chain sterling silver too?

The pendant is .925 sterling silver. The listing describes an 18-inch cable chain with a lobster clasp but does not state the chain's metal, so confirm with the seller if matching metal matters to you.

How noticeable are the diamonds?

The total weight is 1/15 carat across the piece, so each stone is very small. At I color and I2 clarity they read as soft accents rather than bright sparkle.

How big is the pendant?

It is about 24.5 mm wide, roughly the width of a quarter, so the word is legible without being oversized.

Will an 18-inch chain fit?

18 inches sits at the collarbone on most adults. The listing gives no adjuster, so the length is fixed unless you swap the chain.

Can it be worn every day?

Sterling silver is durable enough for daily wear, but polished silver tarnishes and the prong-set stones and script edges can snag on knits. Store it dry and clean it gently.

Is it a good gift for a new mother?

It is designed for that: a "Mama" nameplate meant for Mother's Day, birthdays or a new chapter. Keep in mind the small diamond size if you want a showier piece.