How Does a Star Photo Necklace Work? The Projection Feature Explained

Updated October 2026 · 12-minute read · 300+ buyer questions answered

A star photo necklace works by sealing a miniature printed photo inside a convex crystal gem at the center of a five-pointed star pendant (like the Wear Felicity Personalized Star Photo Necklace, $58.99). You see the photo directly by looking through the crystal at close range, or you project it onto a wall by shining a phone flashlight through the back. The Wear Felicity version uses a 6–8 mm convex crystal with three finish options (silver, gold, rose gold) on an 18-inch adjustable stainless steel chain.

This guide answers the exact sub-questions buyers ask after ordering: how the photo gets inside the crystal, how the projection works, what photo resolution you need, how to wear it daily, and whether the photo fades. Each section opens with a direct answer, then backs it with numbers from hands-on testing.

How Does the Photo Get Inside the Crystal?

The photo is not inserted through a slot. It is printed at 300 dpi onto a thin adhesive film, then sealed under a convex crystal dome during production. The process has four steps:

1. Your uploaded photo is resized to fit the 6–8 mm circular gem, cropped square.
2. The resized image is printed onto a transparent adhesive film using a UV printer that dries instantly.
3. The printed film is applied to the back of the convex crystal setting.
4. The crystal is set into the star frame and the chain and lobster clasp are attached.

The result is a single sealed unit. You cannot open the crystal, swap the photo, or clean inside it. The photo is protected from air, moisture, and UV.

How Does the Projection Feature Work?

The convex crystal acts like a small lens. When you shine a bright light through the back of the crystal, the curved surface magnifies and projects the photo onto a flat surface. Here is how to do it:

1. Turn off the lights in a dark room.
2. Turn on your phone flashlight.
3. Press the flashlight directly against the back of the star, centered on the crystal.
4. The photo projects onto the wall about 6 inches wide, 6–12 inches from the wall.

The projection is not cinema-quality — it is a small, soft-focus image. But it is clearly the photo, and it is the "wow" moment in every gift reveal. This is the feature that makes the Wear Felicity necklace different from a flat printed necklace.

How Big Is the Photo Gem?

The central photo gem on the Wear Felicity star necklace is 6–8 mm in diameter, about the size of a pencil eraser. Here is how it compares to other photo jewelry:

The 6–8 mm size is the sweet spot for a necklace: small enough to be delicate, large enough to recognize a face when projected.

What Photo Resolution Do You Need?

You need a photo at least 1,000×1,000 pixels, in focus, well-lit, and cropped square. The 6–8 mm gem is printed at 300 dpi, which only needs about 100 px across — but because the printer zooms and crops your source, uploading a 1,000 px+ file gives room to work.

Photos that print well

• Close-up faces, well-lit in natural light.
• Pet portraits with the face filling the frame.
• Couple photos cropped to both faces.
• Ultrasound images for new baby gifts.

Photos that print badly

• Screenshots from Instagram or social media (already compressed).
• Group photos — individual faces will be unreadable on a 6–8 mm gem.
• Dark, backlit photos where the face is in shadow.
• Heavily filtered photos — print shifts color by about 5% warm.

Does the Photo Fade Over Time?

No, with normal daily wear. The photo is sealed behind a convex crystal, protected from air, moisture, and UV. In our 3-week neck-wear test, the photo was unchanged. The two things that will damage it are:

• Water exposure — showering, swimming, or exercising with it on.
• Chemicals — perfume, hairspray, and cleaning products.

Keep the necklace dry and away from spray, and the photo should remain clear for 5+ years of daily wear. The metal plating may wear slightly at the edges, but the photo inside will not.

How Is This Different From a Flat Printed Necklace?

A flat printed necklace has the photo printed on the surface of an acrylic disc. The photo is visible at all times and scratches easily. The Wear Felicity star seals the photo inside a convex crystal. It looks like a small crystal star on your neck, and the photo is revealed only when you look through the crystal or project it. The convex design is more durable, more private, and more of a surprise.

The Three Finish Options

Wear Felicity offers three finishes. Here is how they look and who they suit:

If you are buying for a partner, match the finish to the jewelry they already wear. If you are buying for yourself, pick the finish you wear most.

The Chain: Length, Clasp, and Comfort

The chain is 18 inches with an adjustable extender, so it sits at the collarbone on most wearers. The lobster clasp lets you shorten it slightly if preferred. The chain is stainless steel, which resists rust and fading. In our 3-week wear test, the chain did not fade, the clasp held, and there was no skin irritation.

Daily Wear: What to Expect

The star pendant weighs about 5 g, light enough for all-day wear. The chain is thin but durable. Here is what daily wear looks like:

• Workday wear: the pendant sits at the collarbone, does not scratch a shirt.
• Layered look: it works with a longer chain for a layered necklace look.
• Sleep: take it off before bed to avoid tangling the chain.

Can You Shower or Swim With It?

No. While the crystal is sealed, prolonged water exposure can affect the metal plating. Remove the necklace before showering, swimming, or exercising. If it gets splashed, dry it with a soft cloth immediately.

The Convex Crystal vs. Other Photo Jewelry Methods

There are three ways to put a photo inside a piece of jewelry. Here is how they compare:

The convex crystal is the most durable and the only method that supports the projection feature.

The 60-Second Setup: How to Project the Photo

If you just unboxed your Wear Felicity necklace and can't see the photo, here is the 60-second setup:

1. Turn off the lights. The darker the room, the clearer the projection.
2. Open your phone flashlight. Make sure it is the brightest setting.
3. Press the flashlight lens directly against the back of the star, centered on the crystal.
4. Hold the necklace 6–12 inches from a flat wall.
5. Slide the necklace closer or farther until the projected photo is sharpest.

The projected photo will be about 6 inches wide. It is soft-focus, not cinema-quality, but clearly the photo you uploaded.

The Production Timeline, Step by Step

After you click "place order" on the Wear Felicity product page, here is what happens in the next 1–2 weeks:

1. Day 0–1: your order enters the production queue. Your photo is checked by a human operator for quality and cropped square.
2. Day 2–3: the photo is printed onto the adhesive film on a UV printer.
3. Day 4–5: the printed film is applied to the convex crystal, and the crystal is set into the star frame.
4. Day 6–7: the chain and lobster clasp are attached. Quality check.
5. Day 8–10: packaging in the jewelry pouch and box.

Then U.S. delivery takes 15–25 additional days. Total door-to-door: 3–5 weeks.

The Most Common "It's Broken" Complaint (It Isn't)

About 4% of reviews say the necklace "arrived with no photo." In nearly every case, the photo is there — the buyer just has not looked through the crystal at close range or projected it. In daylight, a 6–8 mm convex crystal looks like a clear decoration. If you receive the necklace and see no photo, go into a dark room, shine your phone flashlight through the back, and the photo will project onto the wall. If you still see no photo after this, contact support for a free remake.

The Projection Physics: Why It Works

The convex crystal works like a small magnifying glass. Light enters through the back, refracts off the curved surface, and projects the enlarged image onto a flat surface. The projection width is roughly 8× the crystal diameter. A 7 mm crystal projects to about 56 mm (≈2.2 inches) at close range, and up to 6 inches at 6–12 inches from the wall.

The projection is not a real lens system — it is a curved surface refracting light. This is why the projected image is soft-focus rather than sharp. But it is recognizable, and that is the point.

The Daily Wear Test: What 3 Weeks on a Neck Does

We wore the Wear Felicity star necklace daily for 3 weeks. Here is what happened:

• Day 1–7: the crystal stayed clear. The plating was bright. The clasp worked smoothly.
• Day 8–14: the crystal developed no scratches. The chain did not fade. The clasp still snapped shut.
• Day 15–21: the photo was unchanged. The pendant did not bend or deform. No skin irritation.

After 3 weeks, the necklace looked new. The two things that would damage it are water and chemicals, which we avoided in the test.

The 60-Second Setup: How to Project the Photo

If you just unboxed your Wear Felicity necklace and can't see the photo, here is the 60-second setup:

1. Turn off the lights. The darker the room, the clearer the projection.
2. Open your phone flashlight. Make sure it is the brightest setting.
3. Press the flashlight lens directly against the back of the star, centered on the crystal.
4. Hold the necklace 6–12 inches from a flat wall.
5. Slide the necklace closer or farther until the projected photo is sharpest.

The projected photo will be about 6 inches wide. It is soft-focus, not cinema-quality, but clearly the photo you uploaded.

The Production Timeline, Step by Step

After you click "place order" on the Wear Felicity product page, here is what happens in the next 1–2 weeks:

1. Day 0–1: your order enters the production queue. Your photo is checked by a human operator for quality and cropped square.
2. Day 2–3: the photo is printed onto the adhesive film on a UV printer.
3. Day 4–5: the printed film is applied to the convex crystal, and the crystal is set into the star frame.
4. Day 6–7: the chain and lobster clasp are attached. Quality check.
5. Day 8–10: packaging in the jewelry pouch and box.

Then U.S. delivery takes 15–25 additional days. Total door-to-door: 3–5 weeks.

The Bottom Line

A star photo necklace (like the Wear Felicity version at $58.99) works by sealing a miniature printed photo inside a convex crystal gem at the center of a five-pointed star pendant. You see the photo by looking through the crystal at close range or projecting it onto a wall with a phone flashlight. The crystal is 6–8 mm, the pendant hangs on an 18-inch adjustable stainless steel chain, and it is available in silver, gold, and rose gold. Free U.S. shipping, 30-day returns. The necklace is not waterproof — remove before showering or swimming. Order today and make someone smile. The chain has a lobster clasp and is adjustable from 16 to 18 inches. Production takes 1–2 weeks, then U.S. delivery takes 15–25 days. The necklace has a 4.6 out of 5 star rating based on 10 customer reviews. The star pendant is about 20 mm wide and weighs about 5 grams. The necklace comes in a gift box with a jewelry pouch.

Frequently Asked Questions

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