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Brand New 925 Sterling Silver Chain 18" 25.5g N925-143
- Product Code: N925-143
- Availability: In Stock
£95.00
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Brand New 925 Sterling Silver Chain 18" 25.5g N925-143
The acquisition of a brand new silver chain requires a precise evaluation of metallurgical purity and structural finishing. This 25.5-gram specimen, hallmarked at a UK Assay Office, represents a professional standard in link manufacturing, providing a high-lustre aesthetic combined with the physical density required for long-term durability.
Net Mass
25.50g
Precision Weighted
Alloy Grade
925 Silver
Sterling Standard
Linear Span
18 Inches
Princess Length
Reference
N925-143
Product SKU
Condition
Brand New
Factory Polish
Technical 7-Table Framework for Silver Assets
1. Metallurgical Composition & Alloy Stability
| Material | Silver % | Hallmark Requirement | Verification Status |
|---|---|---|---|
| Sterling Silver | 92.5% Pure | Legal Requirement >7.78g | Fully UK Hallmarked |
| Silver Plate | <1% Coating | None (Not Precious) | Excluded from Inventory |
| Fine Silver | 99.9% Pure | Optional Mark | Bullion Standard (Too Soft) |
Table 1 Analysis: This asset utilizes the 925 Sterling Silver standard. At 25.5g, it is legally required to carry a UK hallmark. We ensure that this chain meets the legal fineness standards, providing both aesthetic beauty and intrinsic commodity value.
2. Link Geometry & Dimensional Data
| Dimension | Metric Measurement | Technical Implication |
|---|---|---|
| Width | 5.2 mm | Medium-Heavy Profile |
| Depth | 2.0 mm | Low-Profile Comfort Fit |
| Weight per Inch | 1.41 g/in | Substantial Linear Density |
Table 2 Analysis: The 5.2mm width offers a significant visual presence without excessive bulk. The density of 1.41g per inch ensures that the links are solid, preventing the "crushing" issues often found in lightweight, hollow-link new silver chains.
3. Finishing & Surface Refraction
| Finish Type | Process | Durability Rating |
|---|---|---|
| High-Quality Polish | Mechanical Buffing | High (Renewable) |
| Rhodium Plating | Electro-Chemical | Moderate (Can wear off) |
| Oxidised Finish | Chemical Sulphidation | High (Intentional Patina) |
Table 3 Analysis: This chain features a high-quality silver polish. Because it is solid sterling silver, this mirror-finish can be restored throughout the life of the piece with simple micro-polishing cloths, unlike plated alternatives.
4. Mechanical Security Audit
| Component | Security Feature | Workshop Rating |
|---|---|---|
| Fastening | Lobster/Trigger Clasp | Professional Grade |
| Terminal Rings | Soldered Jump Rings | Maximum Security |
| Link Articulation | Fluid 360° Movement | Audit Passed |
Table 4 Analysis: We verify that every jump ring is soldered closed. This prevents the chain from pulling apart under tension, ensuring that your new gold pendant or silver charm remains securely attached.
5. Anatomical Fit & Drape Analysis
| Length | Positioning | Best Use Case |
|---|---|---|
| 18 Inches | Base of the neck | Standard Everyday Wear |
| 20 Inches | Collarbone / Mid-chest | Layering Item |
| 24 Inches | Sternum | Statement Piece |
Table 5 Analysis: The 18-inch "Princess" length is the most versatile size in jewellery. It is designed to sit gracefully at the base of the neck, making it suitable for both open-collar shirts and crew-neck attire.
6. Regulatory & Hallmarking Benchmarks
| Marking | Significance | Verification |
|---|---|---|
| Sponsor Mark | H.E. Phillips / Maker | Traceable Origin |
| Fineness Mark | 925 (Crown/Oval) | Purity Guaranteed |
| Assay Office | Anchor/Leopard/Rose | UK Legal Verification |
Table 6 Analysis: For an item of 25.5g, the UK hallmark is your primary consumer protection. It ensures the metal is exactly as described. This technical standard is applied to all our new silver bracelets and neckwear.
7. Serviceability & Maintenance Matrix
| Factor | Action Required | Frequency |
|---|---|---|
| Daily Tarnish | Polishing Cloth | As needed |
| Mechanical Check | Clasp Tension Test | Every 12 Months |
| Deep Clean | Ultrasonic Service | Bi-Annual |
Table 7 Analysis: At H.E. Phillips Ltd, we provide the technical support needed to maintain your asset. Our Totnes workshop can provide professional cleaning and clasp adjustments to ensure the chain remains in "as new" condition for decades.
20 Technical FAQs: Engineering & Asset Management
Metallurgy & Material Purity
1. What exactly does "925" represent in this chain?
925 signifies that the metal is composed of 92.5% pure silver and 7.5% other alloys, typically copper. This specific ratio is the international standard for sterling silver, balancing the brilliance of silver with the hardness of copper to prevent the links from deforming under the 25.5g weight.
2. Why is hallmarking important for a 25.5g item?
In the UK, it is illegal to sell any silver item over 7.78 grams as "silver" without a hallmark from an official Assay Office. This chain has been independently tested to ensure it meets the 925 standard, protecting you from under-carated or counterfeit metals.
3. Will this silver chain cause skin irritation?
Our 925 sterling silver is nickel-free, which is the primary cause of metal-related skin allergies. Because it is brand new and of high purity, it is generally considered hypoallergenic and safe for sensitive skin during daily wear.
4. How does the weight of 25.5g affect its value?
Silver is a precious metal commodity. A heavier chain like this contains more physical silver mass, giving it a higher "melt value" floor compared to lightweight fashion jewellery. This makes the N925-143 a tangible asset as well as an accessory.
Mechanical Security & Engineering
5. What type of clasp is used on this 18" chain?
This chain utilizes a high-security lobster or trigger clasp. These mechanisms are preferred for heavier chains because they feature an internal steel spring that ensures the gate stays closed, even during vigorous movement or accidental snags.
6. Are the links on the N925-143 solid or hollow?
These links are solid. Hollow links are often used to reduce costs, but they are prone to denting and cannot be easily repaired. A solid 25.5g chain offers superior tensile strength and longevity, making it a "lifetime" piece of jewellery.
7. Can this chain support a heavy pendant?
Yes. The 5.2mm width and 25.5g mass provide the structural integrity required to carry significant weights. It is perfectly suited for a new gold pendant or a large silver locket without the risk of the jump rings opening.
8. What is "Work Hardening" in silver chains?
During manufacture, the silver is compressed to increase its hardness. This process ensures that the links do not "stretch" or elongate over time, maintaining the 18-inch linear span even after years of supporting the weight of the chain and pendants.
Maintenance & Environmental Care
9. Why does silver tarnish and how do I prevent it?
Silver reacts with sulphur in the air to form silver sulphide (tarnish). To minimize this, store your chain in a cool, dry place. Regular wear actually helps prevent tarnish, as the friction against your skin naturally polishes the metal.
10. Is it safe to wear this chain in the shower?
While water itself doesn't harm silver, chemicals in shampoos and soaps can leave a film on the links, dulling the finish. We recommend removing the chain before bathing to maintain the "Brand New" mirror shine for as long as possible.
11. How should I clean a 5.2mm wide chain?
For a chain of this width, a dual-action silver cloth is best. The inner treated layer removes oxidation, while the outer layer buffs the silver to a high gloss. Avoid liquid dips, which can be too aggressive and remove the "patina" from the link crevices.
12. Can I wear this silver chain at the gym?
Sweat contains chlorides which can accelerate tarnishing. Additionally, the 25.5g weight can cause the chain to swing during high-impact exercise, increasing the risk of snags. It is technically safer to remove it during intense physical activity.
Financial & Acquisition Intelligence
13. Is H.E. Phillips Ltd a registered UK jeweller?
Yes. We have been operating from our physical showroom in Totnes, Devon, since August 2000. We are fully registered and adhere to all UK Hallmarking Act regulations, ensuring every hephillipsltd purchase is legally compliant.
14. How does the price of this chain relate to the silver market?
The price of the N925-143 is calculated based on the current market spot price for silver, the craftsmanship involved in the link casting, and the cost of official UK hallmarking. This ensures a fair market value for a brand new asset.
15. What is the benefit of buying "Brand New" over "Pre-Loved"?
Buying brand new ensures that the links have zero mechanical wear or "thinning." You receive a factory-perfect polish and a full manufacturer's guarantee, providing peace of mind regarding the item's history and structural integrity.
16. Do you offer a refund policy for silver items?
Yes. We provide a full refund policy in the rare case of any description error. We stand by the accuracy of our 25.5g weight and 925 purity specifications, ensuring a transparent and risk-free acquisition process.
Styling & Expert Advice
17. Does silver coordinate with stainless steel watches?
Sterling silver has a slightly warmer white tone than stainless steel but coordinates excellently with "cool" metals. It pairs perfectly with our Casio or Citizen watch ranges for a unified aesthetic.
18. Is the 18-inch length suitable for men and women?
The 18-inch length is generally a standard "Princess" fit for women. For men, it typically sits as a "choker" length. We recommend measuring your neck with a piece of string to visualize where the 18-inch span will sit on your frame.
19. Can I trade in my old silver for a new chain?
Absolutely. We offer a professional sell gold or sell silver service. You can use the value of your old jewellery towards the purchase of this brand new 25.5g asset.
20. How do I verify the H.E. Phillips Ltd reputation?
We invite you to visit our shop at 19 Fore Street, Totnes. Established in August 2000, we have a 25-year history of serving the Devon community with high-quality gold and silver jewellery and expert horological services.
© 2026 H.E. Phillips Ltd - Your Official Authorised Fine Jewellery and Silver Specialist. All Technical Data verified for accuracy.
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