Manufacturing & Quality

Manufacturing & Quality

The Buyer Says Their State Requires a Hallmark: How to Verify the Claim and Handle the Refund Demand on S925

Short answer: purity marking for jewelry sold in the United States is governed federally, and a missing extra “state hallmark” is not, by itself, a recognized ground for a refund. The federal framework — the FTC’s Guides for the Jewelry, Precious Metals, and Pewter Industries (16 CFR Part 23) and the National Stamping Act — ... <a title="The Buyer Says Their State Requires a Hallmark: How to Verify the Claim and Handle the Refund Demand on S925" class="read-more" href="https://amarajeweiry.com/us-state-hallmark-claims-s925-refunds/" aria-label="Read more about The Buyer Says Their State Requires a Hallmark: How to Verify the Claim and Handle the Refund Demand on S925">Read more</a>

Oct 27, 2026 · 10 min read Read →

Manufacturing & Quality

Prop 65 for Online-Only Silver Jewelry Sellers: When the California Warning Actually Applies

Short answer: selling online-only is not an exemption in itself. The trigger is where your buyers are, not where your warehouse is. Proposition 65 attaches to exposures that happen in California, and the state’s warning-methods regulation spells out internet sales explicitly: if a California resident can complete a purchase on your store or marketplace listing, ... <a title="Prop 65 for Online-Only Silver Jewelry Sellers: When the California Warning Actually Applies" class="read-more" href="https://amarajeweiry.com/prop65-online-silver-jewelry/" aria-label="Read more about Prop 65 for Online-Only Silver Jewelry Sellers: When the California Warning Actually Applies">Read more</a>

Oct 26, 2026 · 10 min read Read →

Manufacturing & Quality

Two Labs, Two Results: Which Cadmium Report Governs Your S925 Batch — and How to Set Up the Arbitration Retest

Neither report governs by default. When one laboratory reports an S925 silver batch roughly 20 mg/kg over the REACH cadmium limit and a second laboratory reports the same batch as passing, the outcome is decided by the decision rule written into your quality agreement — and if you never wrote one, it is decided by ... <a title="Two Labs, Two Results: Which Cadmium Report Governs Your S925 Batch — and How to Set Up the Arbitration Retest" class="read-more" href="https://amarajeweiry.com/s925-cadmium-lab-dispute-protocol/" aria-label="Read more about Two Labs, Two Results: Which Cadmium Report Governs Your S925 Batch — and How to Set Up the Arbitration Retest">Read more</a>

Oct 26, 2026 · 10 min read Read →

Manufacturing & Quality

What Should a Size 7 Moissanite Solitaire Weigh in S925? A Density-Based Weight Table for Auditing Factory Quotes

For a US size 7 solitaire carrying a 6.5 mm round moissanite (roughly one carat in face-up size), a solid S925 silver build should land at about 1.8 to 3.4 g of total finished weight for the classic commercial spec: a shank 1.8 to 3.0 mm wide and 1.2 to 1.5 mm thick contributes roughly ... <a title="What Should a Size 7 Moissanite Solitaire Weigh in S925? A Density-Based Weight Table for Auditing Factory Quotes" class="read-more" href="https://amarajeweiry.com/silver-weight-quote-audit/" aria-label="Read more about What Should a Size 7 Moissanite Solitaire Weigh in S925? A Density-Based Weight Table for Auditing Factory Quotes">Read more</a>

Oct 25, 2026 · 11 min read Read →

Manufacturing & Quality

No ISO Standard for Loose Stones: A Stone-Security QC Spec and Test Record Template for Your S925 Moissanite Factory

No. No ISO, national, or industry standard defines a mandatory pull test or ultrasonic test for stone security on S925 moissanite rings before shipment. Every factory writes its own internal claw-check routine, which means the same phrase — “pull-tested” — can describe very different checks. What you should ask your factory to record is a ... <a title="No ISO Standard for Loose Stones: A Stone-Security QC Spec and Test Record Template for Your S925 Moissanite Factory" class="read-more" href="https://amarajeweiry.com/s925-moissanite-stone-security-qc-spec/" aria-label="Read more about No ISO Standard for Loose Stones: A Stone-Security QC Spec and Test Record Template for Your S925 Moissanite Factory">Read more</a>

Oct 23, 2026 · 10 min read Read →

Manufacturing & Quality

How Many Castings One Rubber Mold Gives — and Who Pays for the Re-Cut in a 3,000-Piece S925 Run

Short answer: budget one vulcanized rubber mold for 300–500 wax pulls on production S925 work, then multiply by the cavity count — a 10-cavity tool covers 3,000–5,000 castings. That band is a planning assumption, not a published warranty. The binding number is the rated pulls written into your purchase order after a 50-shot qualification run ... <a title="How Many Castings One Rubber Mold Gives — and Who Pays for the Re-Cut in a 3,000-Piece S925 Run" class="read-more" href="https://amarajeweiry.com/rubber-mold-life-3000-piece-s925-run/" aria-label="Read more about How Many Castings One Rubber Mold Gives — and Who Pays for the Re-Cut in a 3,000-Piece S925 Run">Read more</a>

Oct 22, 2026 · 12 min read Read →

Manufacturing & Quality

Prong Thickness for a 6.5mm Moissanite in S925: Where to Spec It in CAD and the Minimum to Enforce

Specify the number on a 2D section through the prong axis — Section A-A, cut through the stone center and one prong — not on the 3D mesh, and dimension the metal between the seat bearing surface and the outer face of the prong. For a 6.5 mm round moissanite in S925, put 0.95 mm ... <a title="Prong Thickness for a 6.5mm Moissanite in S925: Where to Spec It in CAD and the Minimum to Enforce" class="read-more" href="https://amarajeweiry.com/prong-thickness-6-5mm-moissanite-s925-cad/" aria-label="Read more about Prong Thickness for a 6.5mm Moissanite in S925: Where to Spec It in CAD and the Minimum to Enforce">Read more</a>

Oct 22, 2026 · 11 min read Read →

Manufacturing & Quality

Pre-Plating vs Post-Plating Inspection for S925: The Two-Gate AQL Plan, the Defect Lists, and What a Final Check Cannot Prove

Inspect S925 pieces at two gates, not one: before plating and after plating, each with its own defect list, sample size and acceptance number. The pre-plating gate catches what plating will hide or seal in—casting porosity, solder voids, short dimensions, loose stones and weak clasps. The post-plating gate catches what plating itself creates—peeling, blistering, edge ... <a title="Pre-Plating vs Post-Plating Inspection for S925: The Two-Gate AQL Plan, the Defect Lists, and What a Final Check Cannot Prove" class="read-more" href="https://amarajeweiry.com/s925-pre-plating-vs-post-plating-inspection/" aria-label="Read more about Pre-Plating vs Post-Plating Inspection for S925: The Two-Gate AQL Plan, the Defect Lists, and What a Final Check Cannot Prove">Read more</a>

Oct 21, 2026 · 10 min read Read →

Manufacturing & Quality

A Batch Video Before the Balance Payment: What an S925 Factory Should Film, and What Video Cannot Prove

Short answer: Yes, you can ask for a video of your actual production batch, and you should make it a condition of the balance payment rather than a favor requested after the shipping documents arrive. A useful batch video is not a clip of one approved sample. It is one continuous, unedited recording that opens ... <a title="A Batch Video Before the Balance Payment: What an S925 Factory Should Film, and What Video Cannot Prove" class="read-more" href="https://amarajeweiry.com/s925-batch-video-before-balance-payment/" aria-label="Read more about A Batch Video Before the Balance Payment: What an S925 Factory Should Film, and What Video Cannot Prove">Read more</a>

Oct 20, 2026 · 11 min read Read →

Manufacturing & Quality

A Base-Metal Spring Clasp on an S925 Piece: Separate EN 1811 Test or Whole-Piece Result?

Short answer: give the clasp its own component-level nickel release result. An S925 body and a base-metal spring clasp are different materials, so the piece is an inhomogeneous article for EN 1811 purposes. The regulation sets one release limit for the article, but the method’s sample preparation breaks an inhomogeneous article into homogeneous sub-parts, and ... <a title="A Base-Metal Spring Clasp on an S925 Piece: Separate EN 1811 Test or Whole-Piece Result?" class="read-more" href="https://amarajeweiry.com/base-metal-clasp-en1811-test-scope/" aria-label="Read more about A Base-Metal Spring Clasp on an S925 Piece: Separate EN 1811 Test or Whole-Piece Result?">Read more</a>

Oct 19, 2026 · 11 min read Read →