The phrase "as a locket" is correct and usable in written English.
It can be used when comparing something to a locket, often in a metaphorical sense, to convey the idea of something being cherished or holding significance.
Example: "She kept the photograph close to her heart, as a locket, reminding her of the love they shared."
Alternatives: "like a locket" or "similar to a locket".
Mary Magdalene in full colour, from Romish prayer cards; Mary Magdalene in black-and-white, from Protestant journals; Mary Magdalene with halo and without; Mary Magdalene large as the frontispiece of a penny magazine; Mary Magdalene tiny as a locket miniature.
A wondrous spherical copper orb opens as a locket for handmade solid perfume, while a lovely hummingbird hangs from the sterling chain and clasp.
This 19th century French patch box is festooned with silver fleur de lys against a textured, black-dotted background, with beveled mirror, and it's wearable as a locket.
As for the Oscar itself, at the Governor's Ball after the ceremony where Ms. Wade had delivered an acceptance speech highlighting the moral imperative of granting homosexual couples the same rights as heterosexuals, the statuette wore a locket containing Ms. Hester's ashes.
Gadgets on show include the usual smartwatches and wristbands, but also a smart sports jacket and even a locket - as business reporter Caroline Hepker demonstrates.
He also presented the Bolivian president with a locket of Saint Martin de Tours, known as the patron for the poor.
Known then as a memorial locket, the glass ball often held a locket of hair that had belonged to a loved one who had died.
The concept of the designer is to encase the hair of loved ones, as was done in the Victorian era, but in a heart-shaped in transparent resin rather than in a locket or brooch.
Once, I had a locket of my grandmother's.
It needed pearls, a locket, a pin, a corsage -- something.
Melanie Jones, wearing a locket containing a photograph of her 11-year-old son, bowed her head and wept as she came face to face with the accused.
