Is a lab-grown diamond a real diamond?

Yes. It has the same carbon crystal structure, hardness and optical properties as a mined diamond. Only its origin differs, which is why gem labs grade it the same way.

How does 1.60 ctw compare with a one-carat ring?

1.60 carats total is noticeably larger than a single one-carat stone, so it reads bigger on the hand. Check whether the weight is one center stone or spread across several stones, since spread weight looks wider but less tall.

What do G-H color and SI clarity mean here?

G-H is near-colorless, so the stone looks white to most eyes in yellow gold. SI means slight inclusions that are typically not visible without a loupe.

Can this ring be resized?

A plain 14K gold band can usually be resized by a jeweler, but rings with stones set around the band are harder to resize. Have a jeweler confirm before buying if the fit matters.

Is it suitable for everyday wear?

14K gold and diamond are hard enough for daily wear. A high-set 1.60 ctw stone is more exposed to knocks, so remove it for gym sessions and heavy chores.