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Brand New 925 Sterling Silver Chain 18" 13.3g N925-167
- Product Code: N925-167
- Availability: In Stock
£50.00
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Brand New 925 Sterling Silver Chain 18" 13.3g N925-167
Presenting a pristine, laboratory-verified 13.3-gram 925 sterling silver chain. This brand-new asset has been meticulously assayed and hallmarked in the United Kingdom, ensuring the highest level of metallurgical purity and structural reliability for the discerning collector or wearer.
Net Mass
13.30g
Factory Measured
Alloy Grade
925 Silver
Sterling Standard
Linear Span
18 Inches
Princess Length
Reference
N925-167
Serial Batch ID
Condition
Brand New
Unworn State
Technical 7-Table Framework for Silver Assets
1. Metallurgical Composition & Alloy Stability
| Material | Silver % | Hallmark Type | Verification Method | Status |
|---|---|---|---|---|
| Sterling Silver | 92.5% | UK Assay Office | Physical Audit | Certified |
| Imitation Silver | 0.0% | None | Chemical Acid | Rejected |
| Plated Base | < 0.5% | "Silver Plate" | Visual / Weight | Non-Stock |
Table 1 Analysis: This 13.3g chain is confirmed as solid 925 Sterling Silver. Unlike plated alternatives, the alloy remains consistent through the entire cross-section, ensuring longevity and intrinsic value retention.
2. Link Geometry & Tensile Strength
| Link Type | Gauge (Width/Depth) | Load Capacity | Flexibility |
|---|---|---|---|
| Classic Link | 1.9mm x 1.9mm | High | Full 360-degree |
| Micro-Trace | < 1.0mm | Low | Medium |
| Heavy Curb | > 4.0mm | Extreme | Variable |
Table 2 Analysis: With a uniform 1.9mm profile, this new silver chains specimen offers an optimal balance between delicate aesthetics and structural durability for daily wear.
3. Hallmark & Statutory Compliance Audit
| Requirement | Metric | Regulatory Standard | Compliance |
|---|---|---|---|
| Weight Threshold | 13.3g | > 7.78g (UK Law) | Mandatory Hallmark |
| Purity Mark | 925 | Assay Certified | Verified |
| Sponsor Mark | Registered | UK Assay Regulation | Present |
Table 3 Analysis: Under UK law, any silver item over 7.78g must be hallmarked. This item exceeds that limit and carries a full UK hallmark, providing legal protection for the purchaser regarding fineness.
4. Geometric Proportions & Drape
| Length | Inches to Weight Ratio | Drape Profile | Suggested Use |
|---|---|---|---|
| 18" (N925-167) | 0.73g per inch | Collarbone Rest | Standard Pendant |
| 16" | 0.83g per inch (Rel.) | High Neck | Small Charms |
| 20" | 0.66g per inch (Rel.) | Mid-Sternum | Large Medallions |
Table 4 Analysis: The 18-inch princess length is statistically the most versatile size, making this chain compatible with a wide range of second-hand silver pendant charm options.
5. Surface Integrity & Reflectivity
| Finish Type | Reflection Index | Maintenance Level | Abrasion Resistance |
|---|---|---|---|
| High-Polish (New) | Maximum | Low (Polishing Cloth) | Standard |
| Brushed/Matte | Diffuse | Medium | High |
| Oxidized/Antique | Low | Minimal | Very High |
Table 5 Analysis: As a "Brand New" item, the surface exhibits specular reflection. Regular care is recommended to prevent sulfide buildup, especially in maritime environments like Devon.
6. Security Mechanical Audit
| Component | Material | Mechanism | Audit Result |
|---|---|---|---|
| Clasp | 925 Silver | Internal Spring | Pass (New) |
| Jump Rings | Solid 925 | Soldered/Closed | Secure |
| Terminal Ends | Reinforced | Friction Fit / Weld | Verified |
Table 6 Analysis: Every terminal link is checked for weld integrity. This prevents the most common form of chain failure where the clasp separates from the main body under tension.
7. Asset Value Comparison
| Provider | Weight Verification | Assay Guarantee | Aftercare Access |
|---|---|---|---|
| H.E. Phillips Ltd | Calibrated Scales | Full UK Hallmark | Totnes Workshop |
| Marketplace Sellers | Often Estimated | Unverified / "Stamp Only" | Digital Support Only |
Table 7 Analysis: Buying from H.E. Phillips Ltd ensures that the 13.3g weight is not just a marketing figure but a lab-confirmed mass, supported by 25+ years of local retail presence.
20 Technical FAQs: Silver Engineering & Procurement
Category 1: Metallurgical Specifications
1. What exactly does 13.3g represent in terms of silver volume?
Silver has a density of 10.49 g/cm³. A 13.3g mass of 925 sterling silver equates to approximately 1.27 cubic centimeters of alloy. This provides a substantial feel without excessive weight, indicating a solid (non-hollow) link construction suitable for holding pendants.
2. Is 925 silver harder than pure 999 silver?
Yes. Pure silver is technically too soft for functional jewelry, often deforming under minimal stress. By alloying it with 7.5% copper, the material's Vickers hardness increases significantly, allowing the 1.9mm links of this chain to maintain their shape over years of use.
3. Will the 13.3g weight fluctuate over time?
Mass loss in silver jewelry is extremely slow and usually caused by abrasive polishing over decades. For a brand-new 13.3g chain, the weight remains a stable physical asset. We provide precision weighing services at our Totnes showroom to verify this at any time.
4. Why is the copper content in 925 silver necessary?
The copper acts as a grain refiner and hardening agent. Without it, the 18-inch span of the chain would stretch and eventually snap under the weight of even a small pendant. The 92.5% purity is the global "Sterling" standard for balancing value with durability.
Category 2: Hallmarking & Legal Verification
5. Why is a UK hallmark superior to a simple "925" stamp?
A "925" stamp can be applied by anyone and is not proof of purity. A UK hallmark is an independent guarantee from a Government-regulated Assay Office, confirming the item has been chemically tested. For any item over 7.78g, like this 13.3g chain, it is a legal requirement in the UK.
6. Where can I find the hallmark on this chain?
Hallmarks are typically struck on the terminal link near the clasp or on the clasp body itself. We use 10x magnification loupes in our workshop to verify these marks, ensuring they include the Sponsor's Mark, the Standard Mark, and the Assay Office Mark.
7. Does hallmarking affect the resale value?
Absolutely. A hallmarked item is far easier to liquidate or trade-in because its purity is legally documented. When you use a sell gold or sell silver service, hallmarked items receive immediate valuation based on their certified fineness.
8. What Assay Office verified this specific chain?
UK silver is typically assayed in London, Birmingham, Sheffield, or Edinburgh. Each office has a unique mark (e.g., a Leopard's Head for London or an Anchor for Birmingham). This chain has been fully processed through these official channels to ensure consumer protection.
Category 3: Structural & Mechanical Integrity
9. Is the 1.9mm width sufficient for heavy pendants?
1.9mm is considered a "mid-gauge" width. It is perfectly engineered to support standard pendants up to approximately 10-15g. For extremely large "investment" pendants, we might suggest a thicker new silver chain, but for most users, this is the ideal daily-wear thickness.
10. What type of clasp is used for this 13.3g model?
This model utilizes a high-security clasp system, typically a lobster or spring ring, designed to manage the kinetic energy of a 13.3g load. The internal spring is made of stainless steel to prevent the "fatigue" that occurs with softer silver springs.
11. Are the links of this chain soldered?
Yes, each link in a high-quality sterling silver chain is individually soldered closed. This creates a continuous loop of metal, preventing the links from pulling apart under tension—a common failure in cheaper, un-soldered "costume" jewelry.
12. Can this chain be shortened or repaired?
Because it is solid 925 silver, it can be easily repaired or modified by a professional jeweler. Our workshop at 19 Fore Street can perform silver soldering and link adjustments that are impossible on plated or "bonded" base-metal chains.
Category 4: Maintenance & Environmental Care
13. How does the South West maritime climate affect new silver?
Salt air and humidity accelerate the reaction between silver and sulfur (found in the air and skin oils), creating silver sulfide (tarnish). We recommend a gentle wipe with a silver polishing cloth once a week to maintain the factory shine of your brand-new chain.
14. Is it safe to wear this silver chain while swimming?
We advise against it. Chlorine in pools and salt in seawater can react with the copper in the 925 alloy, leading to surface pitting and structural weakening over time. For maximum longevity, remove the chain before entering water.
15. How should I store the chain when not in use?
Store it in a cool, dry place, ideally in an airtight bag or a lined jewelry box. This minimizes exposure to oxygen and pollutants, keeping the silver radiant and reducing the frequency of deep cleaning required.
16. What is the best way to clean 13.3g of silver?
Avoid harsh chemical "dips" which can strip the surface. A simple micro-fibre silver cloth is usually sufficient. For deep cleans, use warm water and mild dish soap with a soft toothbrush to reach between the 1.9mm links.
Category 5: Purchasing & Professional Advice
17. Why buy "Brand New" vs. "Pre-Loved" silver?
Brand new items like the N925-167 offer a perfect, unmarred finish and the security of modern manufacturing tolerances. While we also specialize in second-hand silver chain options, new silver provides a contemporary aesthetic and guaranteed unworn condition.
18. Can I pair this with a silver bracelet?
Yes, coordinating silver across different focal points is a classic styling technique. We often recommend matching this 1.9mm gauge with our new silver bracelets for a cohesive, technically consistent look.
19. Is an 18-inch chain suitable for a gift?
The 18-inch length is the "universal" standard for women's necklaces, fitting comfortably on most neck sizes. Its popularity makes it the safest choice for gifting when the recipient's exact preference is unknown.
20. Why trust H.E. Phillips Ltd with this purchase?
Established in **August 2000**, we are a physical, family-run business in Totnes. We offer a transparent return policy and the ability to inspect every item in person. Our reputation is built on 25 years of providing hallmarked, verified precious metal assets to the Devon community.
© 2026 H.E. Phillips Ltd - Your Official Authorised Fine Jewellery Specialist. All Technical Data and Hallmarks verified for forensic accuracy.
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