Loose Lab-Grown Diamonds Wholesale RFQ Checklist
Loose Lab-Grown Diamonds Wholesale RFQ Checklist
A useful RFQ for loose lab-grown diamonds wholesale sourcing should make every quote comparable: the requested category, accepted variance, required documentation, and commercial terms. This checklist uses source-supported category language and buyer-side controls that can be written directly into a purchasing document.
Source Scope
The cited sources support these background points:
- Loose lab-grown diamonds are diamonds that are not yet set in jewelry SODALULU.
- Lab-grown diamond sourcing material identifies HPHT and CVD as growth methods and distinguishes rough lab-grown diamonds from polished loose diamonds VEDABRITE.
- A lab-grown diamond search interface can include filters for shape, cut, color, clarity, carat, polish, symmetry, table, depth, length-to-width ratio, fluorescence, and lab report Whitehouse Brothers.
- Jeweler sourcing content references IGI, GIA, and HRD reports and discusses supply-chain documentation Uniglo Diamonds.
The RFQ controls below are buyer requirements. They do not claim that any supplier, report, growth method, treatment field, media file, size range, or document set is always available.
1. Define the Purchase Category
At the top of the RFQ, state exactly what is being requested. Do not merge rough material, polished loose stones, parcels, matched pairs, layouts, and single stones unless alternatives are intentional.
| RFQ item | Buyer instruction | |---|---| | Product category | Polished loose stones, rough material, parcel, matched pair, layout, or single stone | | Business use | Stock, custom order, production, assortment build, or supplier test order | | Approval level | Stone-by-stone approval, parcel approval, or lot-level approval | | Substitutions | Not allowed, allowed within stated limits, or allowed only with written approval | | Quote format | One row per stone, one row per lot, or both |
If the inquiry is for loose lab-grown diamonds wholesale, say so directly, then narrow the request to polished loose goods, rough material, a parcel, a matched pair, a layout, or individual stones.
2. Build Comparable Stone Specifications
Use the fields supported by the filter and sourcing references as the starting point. For each quoted line, ask the supplier to state target values, accepted ranges, and any proposed exceptions.
| RFQ field | What to request | Acceptance rule to state | |---|---|---| | Shape and cut style | Required shape or shapes | Quote each shape on a separate line | | Carat weight | Minimum and maximum individual stone weight | State whether undersize or oversize stones may be quoted | | Color and clarity | Accepted grade range | State whether upgrades, downgrades, or mixed grades are allowed | | Cut, polish, symmetry | Minimum grade or accepted range where reported | Require disclosure of missing or unreported fields | | Measurements | Length, width, depth, diameter, or ratio limits | Use millimeters and state the tolerance | | Table and depth | Percentage range where the buyer uses those fields | Identify values outside range | | Length-to-width ratio | Target range for shapes where ratio matters to the buyer | State whether ratio is a rejection criterion | | Fluorescence | Accepted level or disclosure requirement | Require disclosure where available | | Growth method | HPHT, CVD, or the method as stated on the report or supplier data | Do not leave the method blank if the RFQ requires disclosure | | Treatment disclosure | Information the supplier can document, if requested | Require written disclosure or a not-stated field where applicable | | Grading report | Accepted lab, report number, report scan, and report-linked identifiers where applicable | Name accepted reports instead of using vague certification language | | Media and data | Image, video, report scan, and spreadsheet where required | Use one row per stone or lot |
Because sourcing content references IGI, GIA, and HRD reports in this context Uniglo Diamonds, name the accepted grading reports in the RFQ instead of relying on general report wording.
3. Set Parcel and Lot Controls
For parcel or lot RFQs, define the tolerance method before quote approval. A parcel description should identify the requested goods and the variance the buyer will accept.
Include these controls where relevant:
- Total quantity or total carat weight.
- Minimum and maximum individual stone weight.
- Whether color and clarity are quoted stone by stone, as a range, or as a lot description.
- Maximum allowed share of stones at the lowest accepted grade, if the buyer uses that rule.
- Measurement tolerance for goods intended for calibrated settings.
- Length-to-width ratio tolerance for fancy shapes where the buyer uses ratio control.
- Exclusion rules for damaged, visibly mismatched, or otherwise nonconforming stones.
- Allowed shipment shortage or overage.
- Replacement, credit, return, or rejection process for out-of-tolerance goods.
For matched pairs or layouts, request side-by-side media and define matching rules before quote approval.
4. Require Documentation That Matches the Goods
Because the cited jeweler sourcing article discusses supply-chain documentation Uniglo Diamonds, convert the documentation request into specific RFQ fields.
Ask the supplier to provide, where applicable:
- Grading report lab and report number for each individual stone.
- Supplier stock ID, lot ID, or parcel ID.
- Shape, carat weight, color, clarity, measurements, polish, symmetry, fluorescence, and report data.
- Growth method and treatment disclosure as shown on the report or supplier file.
- Invoice and packing list using the same stock ID, lot ID, parcel ID, or report number.
- Country of shipment, shipping method, insurance responsibility, and customs documentation.
- Written substitution policy.
- Written discrepancy process for receiving inspection.
When the RFQ requires line-level documentation, the quote, invoice, packing list, report data, and received goods should be matchable by the same identifiers.
5. Request Pricing Terms in a Comparable Format
Ask every supplier to quote on the same pricing basis. The RFQ should state whether the buyer requires:
- Price per stone.
- Price per carat.
- Currency.
- Quote validity date.
- Whether grading reports are included or billed separately.
- Shipping, insurance, and handling charges.
- Payment terms.
- Delivery responsibility or Incoterms if used.
- Memo, approval, return, exchange, or final sale terms.
- Price impact for substitutions or faster delivery.
Do not compare a single-stone report quote with a parcel quote unless documentation level, size distribution, tolerance rules, and rejection rights are also compared.
6. RFQ Checklist
Use this checklist before sending a loose lab-grown diamonds wholesale inquiry.
- [ ] Business use is defined.
- [ ] Purchase category is defined: polished loose stones, rough material, parcel, matched pair, layout, or single stone.
- [ ] Quote format is defined: one row per stone, one row per lot, or both.
- [ ] Shapes are listed separately.
- [ ] Carat ranges include minimum and maximum limits.
- [ ] Color and clarity ranges are stated.
- [ ] Upgrade, downgrade, and substitution rules are stated.
- [ ] Cut, polish, and symmetry requirements are included where relevant.
- [ ] Measurement, table, depth, and ratio limits are included where relevant.
- [ ] Fluorescence preference or disclosure requirement is stated.
- [ ] Growth method disclosure is requested when required or where available.
- [ ] Treatment disclosure is requested when required or where available.
- [ ] Accepted grading reports are named.
- [ ] Report number, report scan, media, and spreadsheet requirements are stated.
- [ ] Supplier stock ID, lot ID, or parcel ID must appear on the quote, invoice, and packing list.
- [ ] Parcel or lot tolerances are defined.
- [ ] Rejection, replacement, credit, or return process is defined.
- [ ] Price basis is requested per stone, per carat, or both.
- [ ] Currency, quote validity, payment terms, shipping, insurance, and delivery responsibility are requested.
- [ ] Receiving inspection window and discrepancy process are stated.
7. RFQ Template
```text Product requested: loose lab-grown diamonds wholesale Purchase category: polished loose stones / rough material / parcel / matched pair / layout / single stone Business use: stock / custom order / production / assortment / supplier test order Approval level: stone by stone / parcel / lot Quote format: one row per stone / one row per lot / both Shapes: Carat range: Color range: Clarity range: Cut requirements: Polish and symmetry: Measurements or ratio requirements: Table and depth limits: Fluorescence limit or disclosure requirement: Growth method disclosure required: yes / no / where available Treatment disclosure required: yes / no / where available Accepted grading reports: Report numbers required before shipment: yes / no / where applicable Media required: image / video / report scan / spreadsheet Quantity or total carat weight: Parcel or lot tolerance rules: Substitution allowed: yes / no / only with written approval Quote basis: price per stone / price per carat / both Currency: Quote validity: Shipping and insurance responsibility: Payment terms: Return, rejection, or discrepancy process: Required delivery date: ```
8. Final Purchase Review
Before issuing a purchase order, compare each response against the same RFQ fields. Prioritize quotes that match the requested category, identify the goods clearly, state exceptions in writing, and provide enough documentation for receiving inspection.
For loose lab-grown diamond sourcing, the RFQ should operate as the buyer's control document: it defines the requested goods, accepted variance, required documents, and commercial terms used for comparison.