Diamond Heart Lock Necklace | Lisa Robin
Diamond Heart Lock Necklace | Lisa Robin
Diamond Heart Lock Necklace | Lisa Robin
Diamond Heart Lock Necklace | Lisa Robin
Diamond Heart Lock Necklace | Lisa Robin
Diamond Heart Lock Necklace | Lisa Robin
Diamond Heart Lock Necklace | Lisa Robin
Diamond Heart Lock Necklace | Lisa Robin

Diamond Heart Lock Necklace

A heart you can keep close and carry from chain to chain. This diamond heart push lock charm presses open and closed in a second — wear it solo on its split chain or layered with the other charms you love.
$ 3,102.45
/
Color
Style

The Diamond Heart Lock Necklace centers on a 14K yellow gold heart-shaped push lock charm set with 1/5 carat of natural diamonds, on an included split chain. The push lock opens with a press, so you can swap the charm or move it to another chain.

Metal 14K yellow gold. Sustainably sourced.
Material Diamond and 14K yellow gold
Diamonds 1/5 carat total weight, natural, SI1, G–H
Style Push lock pendant
Dimensions 25.25mm × 20.85mm (1" × 0.82")
Chain Split chain included

How does the push lock closure work?

The push lock is a small clasp built into the charm — press the side and it opens, so the chain slides in or out, then it closes to hold the chain securely. It's quick and one-handed once you've done it a few times, and it stays shut through daily wear, opening only with intentional pressure.

What makes the heart lock different from the other push lock charms?

The heart is one of the few push lock charms with a sentimental shape and full diamond detail — about 1/5 carat of natural diamonds set across a 25mm heart in solid gold. It arrives on a split chain and works alone as a focal piece or layered with plainer charms.

Can I wear more than one charm, or move a charm between chains?

Yes — the push lock system is built for it. Run several charms on one chain, stacked or spaced, or move a single charm between chains of different lengths and styles. The charms also fit most thin gold chains, as long as the chain passes through the push lock opening.

Returns are accepted within 14 days of purchase for store credit

Your fine jewelry selections are warranted from manufacturing defects for a period of six months from the date of delivery.  If your merchandise becomes damaged as a result of a manufacturing defect, we will repair or replace the item, at our option, without charge for up to 6 months from the date of purchase. This warranty covers each item of fine jewelry for defects in manufacturing only and expressly excludes coverage for excessive wear and tear and/or physical/accidental damage, loss of precious stones not due to manufacturing defects, and theft. Any repairs or service performed by someone other than LISA ROBIN will void our warranty.

All warranties are void if the items were modified in any way. All items with personalization are FINAL SALE and may not be returned.

You are responsible for insured return shipping.

Made to order Ships Aug 01 to Aug 08
Shipping costs calculated at checkout

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Fine Jewelry

The Push Lock Necklace Edit

Infinitely flexible push lock necklace. Imagine every way you'll wear it.

The push lock charm is where the design begins. Choose from geometric shapes — hexagon, oval, rectangle, rhombus, triangle, round — or distinctive forms like padlocks and paper clips. Each charm is 14K gold, and many carry diamond detail along the perimeter, scattered across the surface, or set in clusters. The push lock closure is built into every charm, opening with a press to attach or detach from a chain without tools or assistance.

The included split chain is sized to the charm and opens at the push lock for easy on and off. Beyond the included chain, every push lock charm works with thin gold chains in any style — cable, paper clip, curb, or rope — and at any length from choker to layered long. Shorter chains (16–18") wear the charm high near the collarbone. Longer chains (20–24") let the charm hang lower for layering or solo wear. Multiple chain lengths build the foundation of a flexible collection.

The push lock holds more than one charm. Layer multiple push locks with multiple charms on the same chain for stacked geometric character. Mix diamond push locks with plain gold for visual variation. Add diamonds, initials, birthstones, or anniversary shapes that mark specific moments. The chain becomes the constant; the charms tell the story. You don't have to commit to a single look — swap charms in and out as the day or the year changes.

The push lock necklace is part of The Lisa Robin Edit — pieces curated for lifetime wear and multi-way styling. Build your collection one push lock and one chain at a time. Wear a single push lock on a simple gold chain for daily detail, layer three push locks across two chain lengths for evening, or pair a push lock with other Lisa Robin necklaces — solitaires, lariats, chains — for a layered look that's uniquely yours. The pieces work together because they're designed to.

What our customers say

I loved working with Lisa Robin! It was so easy to create exactly what I wanted. With some minor changes to Lisa's gorgeous styles, I had the perfect wedding ring to coordinate with my Lisa Robin Engagement Ring. Can’t wait to add another ring to my stack.

Abby and Zane
Blountville, Tennessee

Our experience with Lisa Robin was delightful. We found our Lisa Robin engagement ring Instagram and then picked out and bought our wedding rings online. Every question we had was answered quickly. Lisa made us feel special and guided us in the right direction. When we got our rings, they were just what we wanted, expressing our style and love perfectly. We are so happy with how everything turned out.

Mary Katherine and Adam
Columbus, Ohio

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Frequently Asked Questions for Push Lock Necklaces

Yes. Every design can be guided online from start to finish. Once you select your diamond and preferred setting, we provide personalized guidance and create detailed renderings using your exact diamond before hand crafting begins.

Confidence comes from proportion. We review scale, finger size, and structural details together. Detailed renderings created with your selected diamond allow you to evaluate balance and presence before your ring is crafted.

Yes. You select the exact diamond. Whether ordering online or during a private appointment, your chosen diamond is secured first and used to create your design renderings.

Absolutely. You will receive realistic CAD renderings created with your selected diamond, allowing you to review proportions, orientation, prong style, and structural details before approving your ring for hand crafting.

The outcome is the same — a fully guided design process.
• Online: structured guidance through curated options and digital review
• Appointment: in-person discussion with hands-on comparison and proportion review
•Both approaches are intentional and equally supported.

Each design shown is intentional and ready to be crafted. You may personalize metal, diamond, proportions, and select structural refinements. The foundation is design-led; the final ring is crafted specifically for you.

Use this text to answer questions in as much detail as possible for your customers.

Use this text to answer questions in as much detail as possible for your customers.

Use this text to answer questions in as much detail as possible for your customers.

Use this text to answer questions in as much detail as possible for your customers.