Psst! Harry Winston’s got a secret, and we’re going to spill.

The jeweler’s Ultimate Emerald Signature stunner is masquerading as a knockout diamond-drenched bracelet — or pendant or brooch, depending on your mood.

The dazzler is crowned with a one-carat, emerald-cut center stone framed by shimmering rows, and is surrounded with a spray of larger marquise-cut and baguette-cut stones.

The hush-hush? There’s more to this spectacle than meets the eye: With a gentle push, the cover slides aside to reveal a gem-laden timepiece, like a hidden treasure chest.

Open sesame!