3MM Solid Rounded Box Chain
3MM Solid Rounded Box Chain
XRF TESTED · CRAFTED-ON-DEMAND
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Estimated Weight by Length and Purity
| Length | 14K | 18K | 22K | 24K |
|---|---|---|---|---|
| 14 inches | 20.1g | 23.7g | 27.5g | 29.6g |
| 16 inches | 23.2g | 27.4g | 31.8g | 34.2g |
| 18 inches | 26.4g | 31.0g | 36.1g | 38.8g |
| 20 inches | 29.5g | 34.7g | 40.3g | 43.3g |
| 22 inches | 32.6g | 38.3g | 44.6g | 47.9g |
| 24 inches | 35.7g | 42.0g | 48.8g | 52.5g |
| 26 inches | 38.8g | 45.7g | 53.1g | 57.1g |
| 28 inches | 41.9g | 49.3g | 57.4g | 61.7g |
| 30 inches | 45.0g | 53.0g | 61.6g | 66.2g |
Approximate Weight Notice: Due to the handcrafted nature of our jewelry and natural variations in gold alloys, listed weights are approximate. Minor differences may occur from piece to piece.
Square links, rounded into a smooth rope of gold.
The 3MM Solid Rounded Box Chain takes the square box link and rounds its outer faces, producing a smooth, near-cylindrical profile that reflects light in a continuous band rather than in facets. It is dense, heavy for its width, and unusually flexible. At 18 to 66 grams depending on purity and length, it spans everyday wear through full statement weight.
The rounded profile is what separates this from a standard box chain. Without sharp edges, the chain catches light along its whole length at once, and it sits comfortably flat rather than pressing a corner into the skin.
Every piece is XRF tested for purity and priced by its final weight, so what you pay reflects the gold that actually goes into your chain.
Available in 14K, 18K, 22K and 24K solid gold, with yellow, white and rose gold options on 14K–18K. Lock hardware varies by purity: 14K through 22K offer a Lobster Lock, while 22K and 24K pair with a secure M Lock.
Why You’ll Love It:
- Rounded Box Link – Square links with rounded faces for a smooth, continuous band
- Solid Construction – Solid gold throughout, not a hollow build
- 3MM Profile – 18–66 grams by purity and length
- Lock Options – Lobster Lock on 14K–22K; M Lock on 22K–24K
- Nine Lengths – 14 to 30 inches, from choker to full drop
- Multiple Gold Options – 14K, 18K, 22K and 24K gold, in yellow, white or rose where offered
- XRF Tested – Verified purity on every piece, priced by final weight
- Made to Order – Crafted specifically for your chosen configuration
Made to order — turnaround time is typically 2–4 weeks.
Most pieces require approximately 2–4 weeks for production. Available pieces may ship sooner.
Orders ship via FedEx 2Day with adult signature confirmation required. For security, some orders may be held for pickup at a FedEx facility. A government-issued photo ID matching the recipient or order name will be required.
Limited-Lifetime Warranty
We stand behind the craftsmanship of every piece we create. That’s why The Goldsmith is proud to offer a Limited-Lifetime Warranty on all our products, giving you peace of mind for years to come.
As part of our commitment to quality and customer care, your warranty includes:
- Complimentary cleanings at our showroom locations with proof of purchase, helping keep your jewelry shining.
- Regular inspections by our experts to help ensure stones remain secure and prevent loss before it happens.
- Consistent, expert care at our Chinatown LA showroom or any of our other locations.
Your jewelry deserves to be treasured forever—just like the moments it represents. With The Goldsmith, it will be.
If you’re unable to visit a showroom, solid-gold and diamond jewelry without delicate or porous stones can be cleaned in a small bath of warm water with a few drops of Dawn dish soap. Gently agitate the piece to loosen oils and dirt, rinse thoroughly, and dry with a soft, lint-free cloth. Do not soak watches, pearls, opals, emeralds, or jewelry with glued or treated stones; contact us for care guidance.