Our Commitment
Our Commitment to Safe, Tested Jewelry
Safe by Proof. Not by Promise.
You deserve to know exactly what's in the jewelry you wear against your skin every day. At GL.rareness, we don't ask you to take our word for it — we provide independent laboratory evidence.
Every GL.rareness piece is submitted to an independent third-party laboratory accredited under the ILAC-MRA (International Laboratory Accreditation Cooperation Mutual Recognition Arrangement) for a comprehensive safety screening. We test for harmful heavy metals and nickel release — the substances most commonly associated with skin reactions, contact allergies, and long-term health concerns from jewelry wear.
Our results speak for themselves: across every product tested, all harmful substances came back as Not Detected.
What Makes Our Jewelry Different: Independent Safety Testing
The jewelry industry has a transparency problem. Terms like "hypoallergenic," "nickel-free," and "lead-free" are used widely — but they're not always backed by independent verification. A claim on a product page is not the same as a laboratory result.
We chose a different path. Rather than self-certifying our products, we send them to an independent testing facility that holds no commercial relationship with our brand. The laboratory is accredited under the ILAC-MRA — an international mutual recognition arrangement among accreditation bodies across over 100 economies, meaning its results carry the same standing as those from accredited laboratories in the EU, the United States, Japan, Australia, and beyond.
This isn't something we do for marketing. It's something we do because the things closest to your body should carry the highest standard of proof.
What We Test For: 8 Heavy Metals + Nickel Release
Every GL.rareness product is screened for eight harmful soluble heavy metals under GB 28480-2012, China's national standard for hazardous elements in jewelry:
Chromium (Cr) — associated with skin irritation and allergic contact dermatitis. Our result: Not Detected.
Cadmium (Cd) — a toxic metal that accumulates in the body over time. Our result: Not Detected.
Lead (Pb) — a neurotoxin with no safe level of exposure. Our result: Not Detected.
Mercury (Hg) — harmful to the nervous system even in small amounts. Our result: Not Detected.
Barium (Ba) — can cause gastrointestinal and cardiovascular effects. Our result: Not Detected.
Arsenic (As) — a known carcinogen. Our result: Not Detected.
Antimony (Sb) — associated with respiratory and skin irritation. Our result: Not Detected.
Selenium (Se) — toxic at elevated levels. Our result: Not Detected.
We also test for nickel release under GB/T 19719-2005 — nickel being the single most common cause of contact dermatitis from jewelry, affecting an estimated 10–20% of women and 1–3% of men. Our result: Not Detected (below 0.5 μg/cm²/week).
Our Testing Results: Every Product, Every Metal, Not Detected
We don't test a single sample and apply the results to our entire range. We test across product lines, across base metals, and across production stages.
Sun, Moon & Stars Ring (Sterling Silver)
Tested as raw material and as finished product after plating and polishing. Eight heavy metals: all Not Detected. Nickel release: Not Detected. Overall: Pass.
Silken Vow: The Gilded Promise Bracelet (Copper)
Tested as finished product after full processing. Eight heavy metals: all Not Detected. Nickel release: Not Detected. Overall: Pass.
Coastal Memories Necklace (Copper)
Tested as raw material. Eight heavy metals: all Not Detected. Nickel release: Not Detected. Overall: Pass.
Every result returned ND — meaning levels were below the laboratory's detection threshold. Our jewelry doesn't just meet safety limits. These substances are effectively absent.
Why We Test at Two Production Stages
Testing raw materials alone isn't enough. Jewelry undergoes significant chemical and mechanical processes between sourcing and your jewelry box: electroplating, chemical polishing, heat treatment, soldering, and surface finishing. Each of these steps can introduce new substances or alter the metal's surface chemistry.
That's why GL.rareness tests at both stages:
Raw material testing confirms our supply chain is clean — that the metals we source are free from harmful contaminants before any processing begins.
Finished product testing confirms our manufacturing process doesn't compromise that safety — that the piece you actually wear has passed through every chemical bath and polishing step without picking up harmful substances along the way.
When we say our jewelry is safe, we mean the exact piece that touches your skin — in its final, finished form.
Is GL.rareness Jewelry Safe for Sensitive Skin?
Based on our independent laboratory results, GL.rareness jewelry shows no detectable nickel release and no detectable levels of any regulated heavy metal. This makes our pieces suitable for prolonged, daily skin-contact wear — including for those with sensitive skin, nickel allergies, or a history of reactions to fashion jewelry.
We specifically test for nickel release (not just nickel content) because what matters for skin safety isn't whether nickel exists somewhere in an alloy — it's whether it migrates to the surface and contacts your skin during wear. Our testing confirms it does not.
That said, we always recommend that individuals with known severe metal allergies consult their dermatologist, as individual sensitivities can vary.
Our Testing Standards Explained
GB 28480-2012 — China's mandatory national standard for limits of harmful elements in jewelry. It sets maximum allowable concentrations for eight soluble heavy metals in accessories intended for skin contact.
GB/T 28021-2011 — The analytical method used to measure soluble heavy metal content in jewelry through simulated conditions that replicate skin contact and perspiration.
GB/T 19719-2005 — The standard for measuring nickel release rate from products intended for prolonged skin contact, expressed in micrograms per square centimetre per week (μg/cm²/week).
ILAC-MRA Accreditation — The International Laboratory Accreditation Cooperation Mutual Recognition Arrangement is an agreement among national accreditation bodies across over 100 economies worldwide. Laboratories accredited under the ILAC-MRA are verified for competence, impartiality, and scientific rigour to internationally harmonised standards. This means test results from an ILAC-MRA accredited laboratory carry the same standing whether the lab is located in China, Germany, the United States, or Japan.
A Living Commitment — Not a One-Time Badge
This page isn't a static marketing asset. It's a living document that will be updated every time we add new products to our collection, introduce new materials, or complete additional rounds of testing.
Our commitment is simple: no GL.rareness product will reach a customer without first being independently verified for safety. As our collection grows, our testing record grows with it. No exceptions. No shortcuts.
We're building something rare — a jewelry brand where trust isn't assumed, it's demonstrated.
Learn More
Want to understand the science behind jewelry safety testing in more detail? Read our blog post: Is Fashion Jewelry Safe? We Tested Ours for Heavy Metals — Here's What We Found
Have questions about our testing process, standards, or results? Contact us at sales@glrareness.com. We're always happy to share.