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☎ 212-872-9692  Call or text a personal jeweler, 7 daysGold $4,432.36 -0.80%Silver $66.43 -0.23%Platinum $1,820.75 +0.44%spot · we price by weight
TRAXNYCDiamond District · New York

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Diamond Locks

18 pieces

“Choose lab-grown if you want the look. Choose natural if the piece is meant to be passed down to someone you love.” Trax, at the counter on 47th Street

18 pieces, every one in 14K gold. Ten are a lock alone, to hang from your chain or close it as the clasp.

Most carry Miami Cuban in the name. Fourteen read natural on the origin line, three lab-grown.

Diamond locks in 14k gold: pavé chain locks, custom Miami Cuban lock builds, TraxNYC logo locks on 7mm rope chains, and chain-and-bracelet sets with matching lock hardware.

Showing 18 of 18 total
14K
Natural
$3,950

14K Gold Diamond Chain Lock 66606

14K · 11 mm · 9.7 g

14K
Natural
Sale
$3,050

14K Gold Custom Miami Cuban Diamond Lock 66882

14K · 8.85 g

14K
Natural
$22,800

14K Yellow Gold Diamond Cut Solid Rope Chain with TraxNYC Diamond Logo Lock 7mm 66588

14K · 7 mm · 20 in · 110.5 g

14K
Natural
Best Seller
from
$24,550

14K Gold Custom Made Diamond Lock Miami Cuban Link Chain 67242

14K · 9 mm · 16 to 22 in

14K
$18,700

14K Gold Miami Cuban Chain and Bracelet Set with Custom Locks and Heart Charms 64569

14K · 11 mm wide

14K
Natural
$7,400

14K Gold Custom Miami Cuban Lock 66475

14K · 17 mm · 25.4 g

14K
Natural
$4,750

14K Gold Custom Miami Cuban Lock 66476

14K · 15 mm · 17.6 g

14K
Natural
$7,000

14K Gold Miami Cuban Diamond Lock 66918

14K · 14.85 mm wide · 21.6 g

14K
Natural
$8,650

14K Gold Miami Cuban Diamond Lock 66917

14K · 17.5 mm wide · 26 g

14K
Natural
$4,150

14K Gold Miami Cuban Diamond Lock 66916

14K · 14.1 mm · 12.3 g

14K
Lab-grown
$11,350

Emerald Lab-Grown Diamond Custom Lock 69029

14K · 16.5 mm · 37.7 g

14K
Natural
$29,950

14K Gold Custom Made Miami Cuban 12mm Emerald Lock Chain 67622

14K · 12 mm · 22 in · 246.5 g

14K
Natural
$8,950

14K Gold Miami Cuban Diamond Lock 66953

14K · 32.2 g

14K
Natural
$9,850

14K Gold Miami Cuban Diamond Lock 66919

14K · 20 mm · 35.3 g

14K
Lab-grown
$22,000

14K Gold Custom Made Baguette Lab-Grown Diamond Lock Miami Cuban Link Bracelet 70348

14K · 14 mm · 8 in · 104.7 g

14K
Natural
$22,950

14K Gold Diamond Bracelet With Custom Lock 63946

14K · 14 mm · 123.9 g

14K
Lab-grown
$30,550

14k Gold Miami Cuban Chain With Custom Lab-Grown Diamond Lock 68562

14K · 12 mm · 20 in · 251.9 g

14K
Natural
$83,950

14K Gold Solid Miami Cuban Diamond Lock Chain 21 Inches 18mm 66843

14K · 18 mm · 21 in · 526 g

Buyer's guide

How to choose and wear a diamond lock pendant

How a diamond lock hangs on your chain, and which pieces here come with their own

Settle first whether you want a lock by itself or a chain that comes wearing one. Ten pieces here are the lock alone, which hangs from your chain as a pendant or stands in for its clasp. Most are Miami Cuban locks, meant for a Cuban link. Text us your chain's width before you order, since no listing says how thick a link a lock's loop will take.

How it hangs: how to wear a diamond lock pendant or a lock clasp

Wear it on a chain, in either of two ways. The lock hangs from the links like any pendant, or it closes the chain at the front and takes the clasp's place. The listings show both. Most of these locks carry Miami Cuban in the name and are made to match a Cuban's links. Where a listing names the link to wear one on, it names a Cuban, and two add a heavy or solid rope. None says how the loop on top opens, so tell the desk your chain first.

Lock or chain: a diamond lock alone, a lock chain, bracelets and sets

Ten pieces are the lock by itself, and none offers a chain length, so plan on a chain of your own. Five are chains that come wearing their lock. Four of those are Miami Cubans, and the other is a rope. Two bracelets are built around a lock. The one set here is for her, its Miami Cuban chain and bracelet carrying locks and heart charms. For diamond pieces other than locks, see men's diamond pendants or women's diamond pendants.

The diamonds: lab-grown or natural diamond locks, carats and grades

Both kinds are here, and every diamond listing says which. Three titles say lab-grown, the Emerald lock sold alone and the baguette bracelet among them. The other fourteen read natural on the origin line. The lab makes the same crystal the ground does. Seventeen of the 18 listings print a carat weight. Just two grade their stones, so ask the desk for whatever yours leaves out. Prongs hold most of the stones, with pave on one bracelet and channel-set baguettes on the other.

Size and gold: how big a diamond lock is, its grams, 14K yellow, white or rose

The locks alone run 10 to 20 mm across. Top to bottom, a typical one measures just past an inch. The locks weigh from under 9 grams to almost 38. Past 30 grams, a lock wants a thick link under it so it hangs straight, and a light one sits well on a finer chain. The gold is 14K on all eighteen. Nearly all offer yellow, white and rose, the yellow rope and a rose-only bracelet aside.

Custom and buying: a custom diamond lock, made to order, the wait

Yes, a lock can be made to your own design, and more than half the titles already say custom. The rope chain's lock is the TraxNYC logo in diamonds. Ask whether a piece ships ready or gets made for you, because made-for-you work cannot come back. Ask too how long the making takes, since no listing says. Send the listing's link to 212-872-9692 by text, call that number, or open the live chat.

By kind: how wide, how tall or long, and how heavy each piece here runs
PieceHereWidthTall or longGrams
Light lock310 to 14.1 mm18 to 25.3 mm8.85 to 12.3
Middle lock414.85 to 17.5 mm25.75 to 32.5 mm17.6 to 26
Heavy lock316.5 to 20 mm32.7 to 40 mm32.2 to 37.7
Chain with its lock57 to 18 mm16 to 22 in110.5 to 526
Lock bracelet214 mm8 in104.7 to 123.9
Chain and bracelet set111 mm18 to 24 in99.5

Every count on this card is from the 18 pieces live here on September 28, 2026 and what this page sold in the year to that day; prices are on the listings. A lock is light under 15 grams and heavy from 30. One heavy lock prints no size, and one bracelet no length.

Questions we get at the counter

How do you wear a diamond lock pendant?

Hang it from a chain like a pendant, or let it close the chain at the front in place of the clasp. Listings here show both uses, so ask which one the lock you like is built for.

Does a diamond lock come with a chain?

Not the ten locks sold alone. None offers a chain length, so hang one on a chain you have or ask us to pair a chain with it. The chains, bracelets and set come with their lock on.

Is a diamond lock lab-grown or natural?

Both kinds are here. Three have lab-grown in the title. The other fourteen read natural on the origin line. A lab stone and a mined one are the same carbon crystal.

More questions we get

What chain should a diamond lock go on?

A Miami Cuban, first. Most of these are Cuban locks, and the listings name a Cuban first, then a heavy or solid rope. Measure your chain across in millimeters and ask the desk whether the lock's loop takes it.

How big and heavy is a diamond lock?

A typical lock is about 15 mm wide and just past an inch from top to bottom. Weights run from under 9 grams to almost 38. The ones past 30 grams want a thick chain under them.

What gold are these diamond locks made in?

Every one of the eighteen is 14K gold. The rope chain comes in yellow and one bracelet in rose, while the rest offer yellow, white and rose.

How long does a custom diamond lock take?

Only the desk can give you a date, because no listing prints a making time. Settle the gold color and any chain length before the making starts, since a piece made to your order is final sale.

Can I return a diamond lock?

Yes, unless it was made or shortened for you, or its listing says non-returnable; if it is unworn and unchanged, you have fourteen calendar days after delivery. Ship only after the desk's yes, on our insured label. Restocking keeps five percent, and you cover the return shipping.

About this collection
ABOUT THIS COLLECTION

Diamond Locks: The Clasp as the Centerpiece

The lock is the piece: a diamond-set padlock or logo lock worn as the focal point, with the chain as the carrier. Matched sets run the same lock neck and wrist. Commission variants go through custom chains. Wear the mechanism; let the chain follow it.