Diamond micron powder pricing differs from most industrial goods: price is quoted per kilogram (1 kg = 5000 carats), MOQ is usually 1 kg, and price strongly depends on purity and particle size. This article breaks down pricing logic so buyers understand what they pay for.
Why MOQ Is 1 kg
1 kg = 5000 carats. This is not an arbitrary number, but an economically justified minimum: below 1 kg, packaging, logistics and export documentation costs become comparable to the powder cost itself. For the supplier, processing a 100 g order takes the same effort as 1 kg, but profit is 10 times less. For the buyer, 1 kg is usually 1–3 months of production work, which makes sense for testing and first purchase. Smaller volumes are not available: testing starts at the minimum batch of 1 kg.
How Price Per Kilogram Is Formed
| Factor | Price impact |
|---|---|
| Purity (Fe/Ni/Co) | PCD-grade (<65 ppm) 2–3 times more expensive than industrial (500–2000 ppm) |
| Particle size | Fine W5 fractions 30–50% more expensive than W20 (more classification losses) |
| Grain shape | The higher the grade, the higher the price: C — basic, B — standard, A — upgraded, AA — high, AAA — made to spec (on request) |
| Order volume | volume discount applies; the exact rate is confirmed by inquiry |
| Stock availability | Standard W5/W10/W20 fractions 10–20% cheaper than custom-made |
Trial Batch from 1 kg: How It Works
We do not ship samples: a small parcel can only go by air, and the shipping cost of one such parcel is comparable to the value of the sample itself. Testing therefore starts at the minimum batch — 1 kg of micron powder. One kilogram is enough for both laboratory trials and a production run, while the goods value covers the logistics. Every batch comes with a report (particle size, Fe+Ni+Co); common fractions ship from stock within 48 hours.
What's Included in Export Supply Cost
- Powder cost (EXW or FOB)
- Packaging: 100–500 g vacuum bags, outer carton, labeling
- Export documents: invoice, packing list, certificate of origin (on request)
- Logistics: air freight (10–15 days), customs clearance
- Payment: TT 30% deposit, balance before shipment. Invoice provided.
Pricing rule: the purer and finer the powder, the more expensive. But the most expensive PCD-grade is not always needed for rough processing. First define your process requirements, then choose powder grade — this saves 30–50% of budget.
Frequently Asked Questions
Why is MOQ 1 kg?
Diamond micron powder is a precision product with per-batch control. Batches under 1 kg are uneconomical for production and quality control: costs for particle size analysis, packaging and export documentation do not pay off. 1 kg (5000 carats) is the standard market norm for B2B diamond micron powder supply.
How does tiered pricing work?
Price depends on batch volume: 1 kg — standard price, no discount; 10 kg — 3% discount; 20 kg — 4% discount; 50 kg+ — 6% discount (max). For regular customers with recurring orders, we offer long-term fixed-price contracts. Exact price provided after confirming fraction, purity grade and volume.
Can the powder be tested before purchase?
Yes — but not as a free sample: shipping a small parcel costs about as much as the sample itself. A trial batch starts from 1 kg, which is enough to run the micron powder through your process before buying a batch. Every batch comes with a report (particle size, Fe+Ni+Co).
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Cost-saving tips
- Standard W5/W10/W20 fractions — always in stock, ships in 48h.
- Orders over 10 kg — tiered pricing, ask for a quote.
- Trial batch from 1 kg — verify quality before bulk purchase.
Pricing in Kilograms: How It Relates to Carat Quotes
Jewelry practice traditionally measured technical diamonds in carats (0.2 g). We quote per kilogram, because for B2B supply that is more convenient: fewer conversions in documents and at payment. The conversion is simple: 1 kg = 5000 carats, so price per carat times 5000 gives the price per kilogram — and vice versa. When comparing offers from different suppliers, always bring them to one unit: carat or kilogram — otherwise you risk comparing apples to oranges.
How to Properly Compare Quotes from Different Suppliers
In diamond B2B, a price is almost never "complete." One supplier quotes EXW (ex-works, no shipping), another FOB (to the port), a third straight DDP (to your door). A large number difference can come only from delivery terms, not powder quality. Before comparing, ask both for the same basis (e.g. FOB) and the same fraction with the same D50 and purity grade. Then the price difference reflects product and service, not logistics. Also clarify whether the control report and marking are included — otherwise they may be "off-screen."
Two Questions on Procurement Economics
What matters more in comparison — price per kilogram or batch stability?
Over a year, stability matters more. A supplier at a slightly higher price but with stable D50 and impurities batch to batch saves you setup and scrap cost. Cheap but "floating" powder forces the engineer to re-tune the process every time, and that hidden cost eats every cent saved.
Can the price be locked for six months to a year?
Yes, for regular customers with a predictable monthly volume we offer a long-term contract with a fixed price for 3–6 months. This protects both sides from raw-material price swings and lets you plan your product cost.
Conclusion for the Buyer
Understanding how price is built, you can balance purity grade, fraction and volume deliberately. Do not chase the lowest blind quote: compare the delivery basis, demand a per-batch report, and count total cost of ownership rather than price per kilogram alone. Start with a trial batch from 1 kg — that lets you check both quality and service without large upfront commitment.
Why We Work by Prepayment on the First Deal
For a first deal we follow the industry-standard T/T terms: 30% deposit, balance before shipment. This protects both sides and lets us keep credit risk out of the price, staying competitive. After three or four stable deals and a positive history, we are ready to discuss more flexible payment terms for regular partners. This may look conservative, but it is exactly what keeps our selling price below that of suppliers who must reserve funds for possible non-payment.
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