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Brand New 925 Sterling Silver Chain 18" 11..3g N925-153
- Product Code: N925-153
- Availability: In Stock
£23.00
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Certified & Hallmarked
Established Jeweller
Brand New 925 Sterling Silver Chain 18" 11.3g N925-153
The acquisition of a brand new sterling silver chain represents a commitment to both timeless style and certified metallurgical quality. This 11.3-gram 925 silver specimen, code-named N925-153, has been fully assayed and hallmarked to UK standards, ensuring a verified purity level of 92.5% silver for discerning collectors and daily wearers.
Total Weight
11.3g
Assay Verified
Material Grade
925 Silver
Sterling Standard
Length
18 Inches
Princess Length
Reference ID
N925-153
Official SKU
Status
Brand New
Factory Finish
Technical 7-Table Framework: Silver Chain Integrity
1. Metallurgical Composition Analysis
| Material Type | Silver Percentage | Density (g/cm³) | Hardness (Mohs) | Verification Method |
|---|---|---|---|---|
| Sterling Silver (925) | 92.5% | 10.49 | 2.5 - 3.0 | UK Assay Hallmark |
| Silver Plated | 0.1% - 1.0% | Varies | Unstable | Not Hallmarked |
| Fine Silver (999) | 99.9% | 10.49 | 2.5 | Soft (Investment Only) |
Table 1 Analysis: SKU N925-153 is confirmed as 925 Sterling Silver. This specific alloy ratio (92.5% silver to 7.5% hardening metals, typically copper) is the global benchmark for luxury jewellery, providing the necessary tensile strength for the 18-inch span.
2. Link Geometry & Load Bearing
| Dimension | Metric Measurement | Technical Implication | Load Rating |
|---|---|---|---|
| Link Width | 4.2 mm | Bold Aesthetic Presence | High Resistance |
| Link Depth | 1.3 mm | Low-Profile Comfort | Sits Flush to Skin |
| Linear Mass | 0.63g per inch | Balanced Distribution | Minimal Stretch |
Table 2 Analysis: With a width of 4.2mm, this chain is classified as a medium-gauge link. The linear mass distribution ensures that the 11.3g total weight remains comfortable for extended wear while supporting additional second-hand silver pendant charms.
3. Hallmarking & Compliance
| Mark Requirement | Status | UK Legal Compliance | Significance |
|---|---|---|---|
| Standard Mark | 925 Crown/Scale | Mandatory (>7.78g) | Purity Guarantee |
| Assay Mark | Verified Office | Verified | Independent Audit |
| Condition Mark | New | Confirmed | Zero Previous Wear |
Table 3 Analysis: Since the item weighs 11.3g, it exceeds the UK legal exemption threshold of 7.78g. Consequently, a full hallmark is legally required and present, distinguishing this from unverified new silver chains found in unregulated markets.
4. Mechanical Fastener Specification
| Component | Mechanism Type | Security Rating | Failure Mitigation |
|---|---|---|---|
| Primary Clasp | Trigger/Lobster | Industrial Grade | Internal Spring Reset |
| Connecting Link | Jump Ring | Soldered | Zero-Gap Verification |
| Spring Tension | High Response | 99.9% Reliable | Workshop Tested |
Table 4 Analysis: The fastener on N925-153 is a professional-grade trigger clasp. Our workshop verifies the "snap-back" action to ensure the spring tension is optimal for securing an 11.3g asset during physical activity.
5. Surface Integrity & Oxidation Resistance
| Finish Type | Reflection Index | Tarnish Rate | Care Protocol |
|---|---|---|---|
| High-Polish Silver | Maximum | Standard | Silver Polishing Cloth |
| Rhodium Plated | High | Reduced | Workshop Check |
| Antique/Oxidised | Low | N/A | Specialist Cleaning |
Table 5 Analysis: This chain features a classic high-polish factory finish. While 925 silver naturally reacts with atmospheric sulfur, the surface integrity of a brand-new item allows for easy maintenance with a standard silver cloth to maintain its specular reflection.
6. Comparative Valuation (Asset Density)
| Item Class | Weight Ratio | Market Positioning | Durability Class |
|---|---|---|---|
| Lightweight Chain | < 5g | Fashion/Single-Use | Low |
| N925-153 Chain | 11.3g | Mid-Weight Asset | High (Daily Wear) |
| Heavyweight Chain | > 25g | Statement/Investment | Maximum |
Table 6 Analysis: At 11.3g, this chain strikes the "Golden Ratio" of weight—heavy enough to feel substantial and resist kinking, but light enough to remain affordable. It represents a significantly higher value than mass-produced "budget" silver.
7. Seller Authority Hub: H.E. Phillips Ltd
| Authority Metric | H.E. Phillips Ltd Details | Verification |
|---|---|---|
| Establishment Date | August 2000 | Registered Business |
| Physical Location | 19 Fore Street, Totnes | Active Workshop |
| Assay Partnership | UK Assay Offices | Official Hallmarking |
Table 7 Analysis: Trading for over 25 years, H.E. Phillips Ltd provides a physical accountability hub that digital-only retailers cannot match. Every new item is subject to the same rigorous inspection as our second-hand silver chain inventory.
20 Technical FAQs: SKU N925-153 Silver Engineering
Purity & Certification
1. What exactly does "fully hallmarked" imply?
It means the chain has been sent to an independent UK Assay Office where the metal was tested for purity. A set of tiny marks is then stamped into the silver, proving it is genuine 925 sterling. This is a legal requirement for all silver items over 7.78g sold in the UK, providing total consumer protection.
2. Why is it 92.5% silver and not 100%?
Pure silver (999) is extremely soft and prone to deformation. By adding 7.5% alloying metals (usually copper), the material reaches the "Sterling" standard, which is hard enough to withstand the friction of link-on-link movement without thinning out over time.
3. Where can I find the hallmark on this chain?
Hallmarks are typically found near the clasp, either on a small oval tag (jump ring) or struck directly onto the terminal link. You will see the "925" mark, the sponsor's mark, and the symbol for the specific Assay Office that tested the piece.
4. Is N925-153 suitable for those with sensitive skin?
Yes, 925 sterling silver is widely considered hypoallergenic. Since it contains 92.5% pure silver and generally avoids nickel (the most common skin irritant), most people can wear this chain daily without any dermatological reaction.
Structural & Mechanical Data
5. Is an 11.3g weight durable for permanent wear?
Absolutely. While "fashion" chains often weigh under 4g and can snap easily, an 11.3g chain provides sufficient gauge thickness to resist accidental snagging. It is built for permanent, daily use rather than occasional wear.
6. What is the benefit of a trigger clasp over a bolt ring?
The trigger (or lobster) clasp used on this model is mechanically superior for heavier chains. It uses a robust internal spring and a thicker body, offering higher security and ease of use compared to smaller, thinner bolt rings.
7. Are the links on this chain solid or hollow?
This item is constructed with solid silver links. Solid links are preferred in high-quality jewellery because they do not dent, crush, or trap moisture like hollow links, ensuring the chain maintains its shape and weight forever.
8. Can this chain support a heavy pendant?
Yes. The 4.2mm width and 11.3g weight class make it an ideal candidate for pendants. It can comfortably support weights up to approximately 15g without putting excessive strain on the links or clasp mechanism.
Dimensions & Ergonomics
9. Where does an 18-inch chain sit on the average neck?
The 18-inch (Princess) length typically sits just below the collarbone. It is the most versatile length for women and a popular "closer fit" for men, making it ideal for layering with new gold necklaces.
10. Does a 4.2mm width feel "heavy" on the neck?
A 4.2mm width is considered "substantial but sleek." It provides a visible silver presence without being overbearingly heavy. It balances aesthetics with comfort perfectly for all-day wear.
11. Can the length be adjusted?
While this is a fixed 18-inch chain, the clasp can technically be fastened to any link if the links are large enough to accommodate the trigger. However, for a professional look, we recommend wearing it at its intended 18-inch span.
12. Is the chain "kink-resistant"?
The link design of N925-153 is engineered for fluidity. The 1.3mm depth and link spacing allow it to drape naturally around the neck without the rigid "kinking" often found in snake or omega-style chains.
Maintenance & Longevity
13. How do I prevent my silver chain from tarnishing?
Tarnish is a natural chemical reaction. To minimize it, store your chain in a cool, dry place and avoid contact with perfumes or household chemicals. Wearing the chain regularly actually helps keep it clean, as the friction against skin buffs away early oxidation.
14. Can I wear this silver chain in a swimming pool?
We strongly advise against it. Chlorine is a harsh oxidising agent that can cause silver to turn black almost instantly. If exposure occurs, rinse the chain immediately in fresh water and dry it thoroughly with a soft cloth.
15. What is the best way to clean 925 silver?
For brand new items, a simple silver polishing cloth is best. If the chain becomes dull over years of wear, it can be ultrasonically cleaned at our Totnes workshop to remove deep-seated oils and restore its original factory shine.
16. Will the silver wear away over time?
Unlike silver-plated items where a thin layer of silver eventually rubs off, this is solid sterling silver throughout. While it may acquire micro-scratches from daily wear, it will never lose its silver colour and can always be professionally polished back to new.
Purchasing & Trust
17. Why buy new silver from H.E. Phillips Ltd?
We are a brick-and-mortar jeweller established in August 2000. When you buy from us, you are buying from a specialist who inspects every link. We offer a full refund policy and a physical location for any future maintenance or repairs.
18. Is silver a good investment compared to gold?
Silver is an accessible precious metal. While gold carries higher value, silver has significant industrial and decorative demand. A solid, hallmarked chain like this retains its commodity melt value, unlike base-metal costume jewellery.
19. Does the chain come in a gift box?
Yes, all new jewellery from H.E. Phillips Ltd is presented in a professional gift box, making it ready for presentation. The quality of our packaging matches the high standards of the 925 silver asset inside.
20. Can I trade in old silver towards this purchase?
Yes, we offer a sell gold or sell silver service in our Totnes shop. You can bring in your broken or unwanted items to receive a valuation based on the current market spot price.
© 2026 H.E. Phillips Ltd - Your Official Authorised Horological and Fine Jewellery Specialist. All Technical Data verified for forensic accuracy.
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