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Brand New 925 Sterling Silver Chain 20" 28.2g N925-150
- Product Code: N925-150
- Availability: In Stock
£110.00
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30-Day Hassle-Free Returns
Certified & Hallmarked
Established Jeweller
Brand New 925 Sterling Silver Chain 20" 28.2g N925-150
This high-mass 925 sterling silver chain represents the pinnacle of contemporary silver craftsmanship. Fully UK hallmarked and verified for metallurgical purity, the N925-150 provides a substantial 28.2-gram weight profile, specifically engineered for long-term durability and aesthetic brilliance in daily wear.
Net Mass
28.20g
Calibrated Weight
Alloy Grade
925 Silver
Sterling Standard
Linear Span
20 Inches
Standard Fit
Width / Depth
5.9mm / 1.1mm
Profile Gauge
Workshop
Totnes
Devon, UK
Technical 7-Table Framework for Silver Assets
1. Metallurgical Composition & Alloy Stability
| Material | Silver % | Specific Gravity | Purity Verification | Condition |
|---|---|---|---|---|
| Sterling Silver | 92.5% | 10.49 g/cm³ | UK Assay Hallmark | Brand New |
| Fine Silver | 99.9% | 10.49 g/cm³ | Bullion Grade | Investment Only |
| Silver Plate | <0.5% | N/A (Base Metal) | None | Cosmetic Only |
Table 1 Analysis: This asset is confirmed as 925 Sterling Silver. By utilizing 92.5% silver and 7.5% copper, the chain achieves the optimal balance of precious metal value and mechanical hardness required for link-on-link movement without excessive wear.
2. Dimensional Load & Tensile Strength
| Component | Linear Density | Profile Width | Tensile Rating | Load Limit |
|---|---|---|---|---|
| N925-150 Link | 1.41g per inch | 5.9 mm | High | Engineered for Heavy Pendants |
| Lightweight Chain | <0.40g per inch | <2.0 mm | Low | Fragile/Medallion Only |
Table 2 Analysis: At 1.41 grams per inch, this chain possesses significantly higher linear density than mass-produced retail alternatives. This prevents link elongation (stretching) when supporting substantial new gold pendants or large silver charms.
3. Professional Hallmarking & Legal Verification
| Requirement | Standard | Verification Point | Legal Status |
|---|---|---|---|
| Weight Threshold | >7.78 grams | Assay Office Testing | Mandatory |
| Purity Mark | 925 Crown/Scale | Deep-Struck Stamp | Verified |
| Origin Mark | Assay Symbol | UK Laboratory Checked | Certified |
Table 3 Analysis: Items weighing over 7.78g require a legal UK hallmark. This 28.2g chain has been officially tested and stamped, ensuring the consumer is receiving a genuine metallurgical asset rather than an unverified import.
4. Environmental Durability & Surface Care
| Environmental Factor | Impact | Mitigation | Service Interval |
|---|---|---|---|
| Maritime Air (Totnes) | Sulfurization (Tarnish) | Polishing Cloth / Barrier | Monthly |
| Hard Water/Soap | Residue Accumulation | Ultrasonic Cleaning | 6 Months |
| Mechanical Friction | Micro-Scratches | Professional Buffing | Annual |
Table 4 Analysis: As a brand new silver chain, the surface is currently at peak specular reflection. Regular care with a lint-free cloth will preserve this finish, especially in coastal Devon environments where trace atmospheric sulfur is present.
5. Ergonomic Drape & Structural Comfort
| Length | Chest Alignment | Drape Profile | Wearability |
|---|---|---|---|
| 20 Inches | Mid-Sternum | Linear/Solid | Versatile / All-Day |
| 18 Inches | Collarbone | Taut | High Tension |
| 24 Inches | Lower Sternum | Fluid | High Kinetic Swing |
Table 5 Analysis: The 20-inch span is the industry standard for comfort. Combined with a 5.9mm width, it provides a "stay-flat" profile that prevents the chain from rolling or twisting during physical activity.
6. Asset Retention & Financial Security
| Asset Type | Primary Value Driver | Market Stability |
|---|---|---|
| 28.2g Sterling Silver | Metal Mass + Hallmarked Purity | High - Commodity Linked |
| Costume Jewellery | Fashion Trend | Zero Residual Value |
Table 6 Analysis: Investing in hallmarked new silver chains provides a physical hedge. The substantial weight ensures that a significant portion of the purchase price remains as tangible bullion value.
7. Authority Comparison: H.E. Phillips Ltd vs. Generalists
| Metric | H.E. Phillips Ltd | Unverified Online Sellers |
|---|---|---|
| Purity Guarantee | UK Hallmarked & Lab-Tested | Self-Certified "925" Stamp |
| Support | On-site Devon Workshop | Digital-Only Return Process |
| Heritage | Trading since August 2000 | Variable / Short-Term |
Table 7 Analysis: Our 25-year history in Totnes ensures technical accountability. Unlike unverified sellers who may use lightweight "hollow" links, we provide solid-gauge assets that are built for multi-decade longevity.
20 Technical FAQs: Engineering & Metallurgical Integrity
I. Metallurgical Composition & Purity
1. What exactly does the 925 hallmark signify on this 28.2g chain?
The 925 mark indicates that the chain is comprised of 92.5% pure silver and 7.5% alloy (usually copper). Because this item exceeds 7.78 grams, it has undergone mandatory UK assay testing to verify this composition. This is your legal guarantee that the item is not plated or silver-filled.
2. Why is copper added to the sterling silver alloy?
Pure silver (99.9%) is chemically soft and prone to deformation under minimal stress. Adding 7.5% copper increases the Vickers hardness of the metal, ensuring that the links in this 20" chain maintain their shape even when subjected to the weight of a heavy pendant or accidental snagging.
3. Is this chain hypoallergenic for sensitive skin?
Yes. Genuine 925 sterling silver is widely considered hypoallergenic. It contains no nickel, which is the primary cause of skin irritation in lower-quality "white metal" jewellery. As a brand new item, the metal is pristine and free from contaminants found in second-hand pieces.
4. How do I distinguish hallmarked silver from stamped silver?
A "925" stamp can be applied by any manufacturer, but a UK hallmark is an independent audit mark from one of the four UK Assay Offices. This 28.2g chain features the full suite of marks, confirming it has been laboratory-tested for metal fineness and authenticity.
II. Mechanical Load & Durability
5. Is the 28.2g weight concentrated in solid links?
Yes. This chain is manufactured with solid link cores. Unlike "hollow" silver chains which may appear thick but lack mass, this 28.2g profile provides substantial wall thickness in every link, making it resistant to crushing, kinking, and structural collapse.
6. What is the benefit of a 5.9mm width for daily wear?
The 5.9mm width provides a broad surface area that distributes the 28.2g weight across the neck, preventing the "digging" sensation associated with thin, heavy chains. It also ensures the chain remains visible as a standalone piece without appearing overly bulky.
7. Can this chain safely support a heavy silver or gold pendant?
Absolutely. The linear density of 1.41g per inch provides massive tensile strength. This chain is technically capable of supporting pendants weighing up to 40g without risking link elongation or failure of the jump rings.
8. Are the jump rings on SKU N925-150 soldered?
Yes. At H.E. Phillips Ltd, we ensure that high-mass chains have their terminal jump rings professionally soldered. This creates a continuous loop of silver, preventing the clasp from "pulling through" the ring under tension—a common failure in cheaper new silver bracelets and chains.
III. Environmental Care & Maintenance
9. Will this sterling silver chain tarnish over time?
Sterling silver naturally reacts with sulfur in the air to form silver sulfide (tarnish). However, the high purity and brand-new surface of this chain make it easy to maintain. Frequent wear actually helps prevent tarnish, as the friction against clothing naturally "polishes" the metal.
10. How should I clean a 28.2g chain in a maritime climate?
In Devon, salt and humidity can accelerate oxidation. We recommend rinsing the chain in fresh water if exposed to salt air and using a specialized silver polishing cloth. Avoid "dip" cleaners, which can be overly abrasive to the delicate 925 alloy surface.
11. Can I wear this silver chain while swimming?
We advise against wearing silver in chlorinated pools or hot tubs. Chlorine is a powerful oxidizing agent that can cause rapid tarnish and "stress corrosion cracking" in silver alloys. For longevity, remove the chain before entering treated water.
12. How do I store the chain when not in use?
Store the chain in a dry, airtight environment—such as a small zip-lock bag or a felt-lined jewellery box. This limits exposure to oxygen and atmospheric pollutants, keeping the brand-new shine intact for much longer periods.
IV. Aesthetic & Styling Integration
13. Is 20 inches considered a unisex length?
Yes, 20 inches is a versatile length. On an average male frame, it typically sits at the top of the sternum (ideal for wearing under a shirt). On a female frame, it offers a lower, elegant drape that is perfect for showcasing new gold necklaces or pendants.
14. How does the 1.1mm depth affect the "lay" of the chain?
The 1.1mm depth provides a "low-profile" aesthetic. This ensures the chain lies flat against the skin or clothing rather than standing out. This prevents the chain from catching on knitwear and creates a smoother, more sophisticated look.
15. Can I pair this with a modern stainless steel watch?
Silver and stainless steel share a similar "cool" color temperature. This chain coordinates perfectly with luxury timepieces from our Casio or Citizen ranges, creating a cohesive, technically-minded ensemble.
16. Does this chain have a mirror finish?
Yes, as a brand-new item, it features a high-polish finish designed for maximum specular reflection. This gives the silver a bright, white "glow" that is distinctive of high-purity sterling silver compared to darker metals like stainless steel.
V. Financial Security & Provenance
17. Why is buying from a physical Totnes shop safer?
H.E. Phillips Ltd has been at 19 Fore Street since August 2000. This physical presence provides accountability. You can verify the 28.2g weight on our trade-calibrated scales and discuss the hallmark with our on-site experts before purchasing.
18. Does this 28.2g chain hold its value?
Precious metal assets like sterling silver have an intrinsic "melt value." While fashion jewellery loses all value once purchased, a high-mass hallmarked silver chain retains value based on the global spot price of silver, making it a "wearable investment."
19. Can I trade in old jewellery for this new chain?
Yes. We offer a transparent sell gold or sell silver service. You can use the value of your old, broken, or unwanted jewellery toward the acquisition of this 28.2g hallmarked asset.
20. What is the return policy for this brand new item?
At H.E. Phillips Ltd, we offer a full refund policy if an item is found to be not as described. Our 25 years of trading in Devon is built on trust and ensuring every customer is satisfied with the metallurgical accuracy of their purchase.
© 2026 H.E. Phillips Ltd - Official Authorised Fine Jewellery and Silver Specialist. All Technical Data verified for accuracy.
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