21K Gold Chains

6 chains 4.8

4.8 (979 reviews) · the jewelry store on 47th Street

Results

Best seller

^$960

21K Solid Gold Square Wheat Chain 1.5mm 71477

1.5 mm3 g at 16 in#71477

16 in

21K gold anchor cable chain necklace with 1.8mm links, available in multiple lengths.

Best seller

from ^$600

21K Gold Cable Chain 1.8mm 71481

1.8 mm20 to 22 in#71481

20–22 in, 2 lengths

Best seller

from ^$1,100

21K Gold Hollow Rope Chain 2mm 71475

2 mm18 to 20 in#71475

18–20 in, 2 lengths

21K Hollow Gold Square Wheat Chain 2mm 71478

Best seller

from ^$1,350

21K Hollow Gold Square Wheat Chain 2mm 71478

2 mm18 to 20 in#71478

18–20 in, 2 lengths

from ^$690

21K Gold Cable Chain 71868

1.3 mm16 to 20 in#71868

Made to order · 16–20 in, 2 lengthsMade to order

21K gold 3.5mm Figaro chain with alternating oval and bar links, polished finish.

^$2,990

21K Solid Gold Figaro Chain 3.2mm 71480

12 g at 18 in#71480

Made to order · 18 inMade to order

See all 15 21k gold jewelry ›

21K gold chains at TraxNYC come in rope, square wheat, cable and figaro, 1.5mm to over 3mm. At 87.5 percent pure, the color runs deeper than 14K and the gram carries more gold.

“With gold, you're always dealing with money. So first decide how much of it you want to put into the gold.” Trax, at the jewelry store on 47th Street

Six chains in 21K yellow gold, from a 1.3 mm cable to a figaro past 3 mm, with rope and square wheat between.

Of the chains here, the 1.5 mm square wheat sold the most in the year, 11 in all.

Buyer's guide

How to choose a 21K gold chain

What 21K gold is, how a slim 21K chain wears, and which link and length to pick

Buy a 21K chain for its deep yellow, then wear it gently. At seven eighths pure gold it is softer than 14K or 18K, so a slim chain shows wear and can stretch sooner. Most of the chains here are fine, with one heavy figaro. Read the grams before the width, because the grams are the gold. For a chain worn every day, take a link of 2 mm.

Four picks from this page

21K Solid Gold Square Wheat Chain 1.5mm 71477

21K Solid Gold Square Wheat Chain, 1.5 mm11 in the year, the most of the chains here. Solid, 3 grams at 16 inches.

21K Gold Cable Chain, 1.8 mm4 in the year. A plain cable link, and the one chain here that comes in 22 inches.

21K Solid Gold Figaro Chain, 3.2 mm12 grams at 18 inches, the heaviest 21K chain here and the one link past 3 mm.

21K gold: what a 21 karat gold chain is made of

A 21K chain is 21 parts gold in every 24, which works out to 87.5 percent. The last eighth is mostly silver and copper, which stiffens the gold enough to hold a link. Some chains bear a 21K or 875 mark near the clasp; it depends on the piece. All that gold reads a warmer, deeper yellow than 14K or 18K. All six chains here are listed in 21K yellow gold, with no title calling one plated or filled.

Durability: can you wear a 21K gold chain every day

Yes, if you treat it gently. High-karat gold is soft, so a slim 21K chain kinks and stretches sooner than the same link in 14K. A snag does the damage, since a soft link pulls open before it breaks. Take the chain off to sleep and to lift weights. Sweat and shower water will not tarnish it, though pool chlorine can dull the shine.

Links: 21K rope, square wheat, figaro and cable chains

Pick the link by how you will wear it. A square wheat weaves its links into a four-sided braid, so it keeps its shape and shrugs off kinks. The two here are 1.5 and 2 mm. The rope twists short links into a spiral that throws light, and the one here is 2 mm. The figaro runs a few short links and then a long one, and it is the only chain here wider than 3 mm. The cable is the plainest link, simple loops that let a pendant slide. Both cables are slim, at 1.3 and 1.8 mm.

Grams: what a 21K gold chain weighs and the gold inside it

Judge a 21K chain by its grams, never by its width alone. Seven eighths of the listed weight is pure gold. The 2 mm square wheat is listed at 4 grams, while the 2 mm rope weighs 2.5 at the same 18 inches. Everything but the figaro is listed between 1.5 and 4 grams. Each listing weighs its chain at one length, and a longer chain holds more gold, so ask for the grams at your length before you pay.

Length and pendant: a 16, 18, 20 or 22 inch 21K chain with a pendant

Choose the length by where the chain should sit. Sixteen inches rests at the base of the neck on most women, and 18 reaches the collarbone. On most men 20 inches meets the collarbone and 22 falls a little lower. The lengths here run from 16 to 22 inches, and five chains come in 20. Hang only a light pendant on 21K, since a bail slowly wears soft gold thin. A small cross or charm rides better on a 2 mm square wheat or rope than on the finest cable. For a heavier rope or another length, open the live chat, or call or text 212-872-9692 from 10 AM ET.

Chains: the 21K chains here, fine to wide

Link	Width	Grams listed	Lengths
Cable	1.3 mm	2 g at 16 in	16 or 20 in
Square wheat	1.5 mm	3 g at 16 in	16 to 20 in
Cable	1.8 mm	Ask us	20 or 22 in
Rope	2 mm	2.5 g at 18 in	18 or 20 in
Square wheat	2 mm	4 g at 18 in	18 or 20 in
Figaro	Past 3 mm	12 g at 18 in	18 in

Every count on this card is from the 6 chains live here on October 13, 2026 and what this page sold in the year to October 12, 2026; prices are on the listings. Grams are each listing's own, at the length shown. The 1.8 mm cable is weighed at a length it is not offered in, so ask us for its grams.

Questions we get in the store

Do you have a thicker or heavier 21K gold chain?

The heaviest here is the solid figaro, listed at 12 grams, the only chain past 3 mm. For a wider rope or another 21K link, put the width and length in the live chat, or call or text 212-872-9692 from 10 AM ET.

What purity is 21K gold?

21K gold is 87.5 percent pure, which is 21 parts gold in 24. Silver and copper make up the rest and harden it. A 21K chain may or may not carry a 21K or 875 mark, and every chain here is listed in 21K yellow gold.

Is a 21K gold chain durable?

It is, for gentle daily wear, but it is softer than 14K or 18K. A slim 21K chain can kink or stretch when it snags, so take it off for sleep and the gym. A link of 2 mm or more holds up best.

How many grams of gold are in a 21K chain?

Seven eighths of the weight on the listing. A longer chain carries more, so ask the live chat for the grams at the length you want.

Can I hang a pendant on a 21K chain?

Yes, a light one. A bail slowly wears soft gold thin where it rubs, so put a small cross or charm on a 2 mm square wheat or rope rather than the finest cable. Make sure the clasp end slips through the bail.

What length 21K chain should I get?

Take 18 inches for the collarbone on most women and 20 for most men. Sixteen hugs the base of the neck, and 22 drops a little lower. Five of the six chains here come in 20 inches.

Does a 21K gold chain tarnish?

No. There is so little other metal in 21K that it keeps its yellow in ordinary wear. Chlorine and strong cleaners can still cloud the shine, so remove it before a swim and rinse it in warm water with mild soap.

Can I return a 21K gold chain?

Yes, within fourteen calendar days of delivery, unworn, unaltered and boxed. Clear it with customer service first, at service@traxnyc.com or 212-391-3832, then send it on our return label. Five percent restocking and that label come off the refund. A chain shortened or lengthened for you is final.

How much is a 21K gold chain?

Each listing prints its own price, and it moves with the grams of 21K in the chain and the gold market on the day. For a width or length not listed, ask the live chat, or call or text 212-872-9692 from 10 AM ET.

Shop by link

21K Gold Chains: Rope, Figaro, Cable and Square Wheat

Fine gauges under 2mm wear daily and layer clean. The 3mm-plus figaro is the heaviest chain here, 12 grams at 18 inches. Every chain is weighed and priced in NYC's Diamond District. Explore the full 21K Gold Collection for bangles in the same purity.

Bangles 21K Gold