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Brand New 925 Sterling Silver Chain 18" 19g N925-157
- Product Code: N925-157
- Availability: In Stock
£74.00
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Brand New 925 Sterling Silver Chain 18" 19g N925-157
Acquiring a brand-new sterling silver chain necessitates a rigorous evaluation of metallurgical purity and mechanical construction. This 19-gram specimen, reference N925-157, has been fully assayed to ensure compliance with 925 fineness standards. Designed for longevity and daily utility, it represents a verified investment in precious metal quality by H.E. Phillips Ltd.
Net Mass
19.00g
Assayed Weight
Alloy Grade
925 Silver
Sterling Standard
Linear Span
18 Inches
Princess Length
Reference
N925-157
Product ID
Assay Location
UK Office
Certified Origin
Technical 7-Table Framework for Silver Assets
1. Metallurgical Composition & Alloy Stability
| Material | Silver % | Copper % | Density | Identification |
|---|---|---|---|---|
| Sterling Silver | 92.5% | 7.5% | 10.49 g/cm³ | "925" Assay Mark |
| Fine Silver | 99.9% | 0.1% | 10.49 g/cm³ | 999 Bullion |
| Silver Plate | <1% | Balance | Variable | EPNS / Base Metal |
Table 1 Analysis: This chain is composed of authentic 925 Sterling Silver. The copper inclusion provides the hardness necessary for functional jewelry, while the 92.5% silver content ensures the asset retains intrinsic commodity value.
2. Dimensional Specifications
| Length | Width | Depth | Grammage per Inch |
|---|---|---|---|
| 18 Inches | 4.8 mm | 4.4 mm | ~1.05g/inch |
Table 2 Analysis: With a width of 4.8mm and a total mass of 19g, this item offers a substantial profile compared to lightweight new silver chains often found in mass retail.
3. Structural Integrity & Link Design
| Link Type | Core Design | Durability Rating | Surface Finish |
|---|---|---|---|
| Link Chain | Solid Core | High-Industrial | High-Specular Polish |
Table 3 Analysis: The link geometry is engineered for fluidity and tensile strength. Unlike hollow-link variants, this solid construction resists crushing and deformation during regular wear.
4. Clasp & Fastening Mechanism
| Component | Material | Action Type | Verification |
|---|---|---|---|
| Primary Clasp | 925 Sterling | Mechanical Spring | Workshop Tested |
| End Jump Ring | Solid Silver | Closed Loop | Secure Integration |
Table 4 Analysis: All fastenings are made from the same 925 alloy. The mechanical spring within the clasp is calibrated to provide consistent tension, preventing accidental release.
5. Comfort & Drape Analysis
| Measurement | Standard Name | Anatomic Position | Recommended Pendant Load |
|---|---|---|---|
| 18 Inches | Princess Length | Collarbone / Sternum | Up to 15.0g |
Table 5 Analysis: This length is optimized for versatility. It provides enough support for a second-hand silver pendant charm without causing excessive neck fatigue.
6. Hallmarking & Compliance
| Requirement | UK Law Threshold | N925-157 Status | Verification Authority |
|---|---|---|---|
| Assay Hallmark | Over 7.78g | Fully Hallmarked | Independent UK Assay Office |
Table 6 Analysis: Because this item exceeds the 7.78g legal exemption limit, it carries a full UK hallmark. This is your legal guarantee of purity, differentiating it from unverified imports.
7. Comparison: H.E. Phillips vs Market Averages
| Metric | H.E. Phillips Ltd | Mass Market Retailers |
|---|---|---|
| Verification | Physical Workshop Audit | Drop-shipped / Unverified |
| Accountability | 25+ Years in Devon | Online Only / No Physical Hub |
| Purity Guarantee | Non-destructive Testing | Self-stamped only |
Table 7 Analysis: At H.E. Phillips Ltd, our experience since August 2000 ensures that every piece of new silver bracelets or chains meets rigorous forensic standards before reaching the client.
20 Technical FAQs: Silver Engineering & Product Intelligence
Metallurgy & Purity
1. What specifically does "925" denote in this 19g chain?
925 signifies that 925 parts out of 1000 are pure silver. The remaining 75 parts are typically copper. This ratio is the international standard for sterling silver, striking the perfect balance between the luster of pure silver and the mechanical hardness required for link durability.
2. Is this chain "silver plated" or solid sterling?
This is solid 925 Sterling Silver throughout. Unlike silver-plated items that have a thin layer of silver over a base metal (like brass or nickel), this chain is a homogenous alloy. It will not "wear through" to a different color over time.
3. Why is copper added to the silver alloy?
Pure silver (99.9%) is extremely soft and would stretch or break easily if used for a chain. Copper increases the tensile strength and Vickers hardness of the metal, ensuring the links can withstand daily tension and friction.
4. How is the 19.0g weight verified?
We use laboratory-grade, calibrated electronic scales to confirm the mass of every item. For SKU N925-157, the 19g weight is a verified net mass, ensuring you receive the exact amount of precious metal as described.
Mechanical Construction
5. What are the benefits of a solid link over a hollow link?
Solid links offer superior structural integrity. Hollow links are prone to denting or collapsing under pressure and are nearly impossible to repair seamlessly. A solid 19g chain like this one provides a lifetime of wear and can be professionally polished repeatedly.
6. How secure is the clasp mechanism?
The clasp is a high-grade mechanical fastener with an internal spring. At H.E. Phillips Ltd, we manually check the spring return on every chain to ensure it snaps shut securely, protecting your investment from falling off during activity.
7. Can this chain be shortened or repaired?
Yes. Because it is solid 925 silver, it can be easily laser-welded or soldered by a professional jeweler. This is a significant advantage over base-metal jewelry which often cannot be repaired once broken.
8. What is the significance of the 4.8mm width?
A 4.8mm width provides a "medium-heavy" aesthetic. It is substantial enough to be worn alone as a statement piece, yet refined enough to pair with larger pendants without appearing disproportionate.
Legal & Certification
9. Why does this chain require a hallmark?
Under the UK Hallmarking Act 1973, any silver item weighing over 7.78 grams must be independently hallmarked. At 19g, this chain is legally required to be tested and stamped by a government-regulated Assay Office.
10. What marks should I look for on this item?
You will typically find the "925" fineness mark, the Sponsor's Mark (maker), and the Assay Office mark (e.g., a Leopard's head for London or an Anchor for Birmingham). These marks prove the item's authenticity.
11. Does hallmarking affect the silver's value?
Yes. A hallmarked item has a higher resale and insurance value because its purity is third-party verified. It removes the risk associated with "self-stamped" jewelry that may not actually meet the 925 standard.
12. Is the hallmark visible to the naked eye?
The marks are purposefully small to avoid detracting from the design. They are usually located on a small "tag" near the clasp or struck directly onto the clasp mechanism itself, often requiring a jeweler's loupe to read clearly.
Maintenance & Care
13. Will this brand-new silver chain tarnish?
Tarnish is a natural chemical reaction between silver and sulfur in the air. While it is inevitable over time, it is not permanent. Regular wear actually helps prevent tarnish through the natural friction against your clothing and skin.
14. How should I clean a 19g solid silver chain?
We recommend using a specialized silver polishing cloth. For deeper cleans, a mild solution of warm water and soap can be used with a soft brush, followed by thorough drying to prevent water spots.
15. Is it safe to wear this chain in a swimming pool?
We strongly advise against it. Chlorine is a harsh chemical that can cause "stress corrosion cracking" in silver alloys over time. Always remove your silver jewelry before entering pools or hot tubs.
16. Can I wear this chain while sleeping?
While the solid links are sturdy, we recommend removing chains at night to prevent snagging on bedding, which can put unnecessary strain on the jump rings and clasp mechanism.
Purchase & Authority
17. Who is H.E. Phillips Ltd?
We are a family-owned independent jeweler located at 19 Fore Street, Totnes. We have been specialists in silver and gold since August 2000, offering physical expertise that digital-only retailers cannot match.
18. Do you offer a guarantee on new items?
Yes. All brand-new items are guaranteed to be genuine and free from manufacturing defects. We offer a full refund policy in the event of any descriptive error, providing total peace of mind for our clients.
19. Can I pair this with a watch?
Absolutely. Silver chains pair excellently with stainless steel watches. We recommend viewing our Casio or Citizen collections for a coordinated technical look.
20. How do I know I'm getting a fair price?
Our pricing is based on the current market spot price for silver, the weight of the item (19g), and the craftsmanship of the link design. Buying from a long-established jeweler ensures you are paying for real metal value, not just a brand name.
© 2026 H.E. Phillips Ltd - Your Official Authorised Fine Jewellery Specialist. All technical specifications verified for accuracy.
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