PROFESSIONAL NATURAL DIAMOND GUIDE
Buying Loose Diamonds Wholesale The Professional Buyers Checklist
Before buying loose diamonds wholesale, use a consistent checklist for specifications, documentation, commercial terms and delivery. It makes comparisons faster and reduces avoidable misunderstandings.
1 Define the intended use
Start with the product, client request or inventory gap the diamonds must serve. A center stone, a matched pair and a production parcel require different tolerances. State whether the priority is visual matching, a narrow grading range, exact dimensions or flexibility within a budget.
2 Write the stone specification
Record shape, carat range, color, clarity, cut quality where relevant, polish, symmetry, fluorescence, measurements and cut-related requirements and GIA grading-report details. Include quantity and acceptable variation. For fancy shapes, dimensions and outline can be as important as carat weight because two stones of the same weight may face up differently.
3 Request comparable information
Ask each supplier for the same fields so proposals can be compared on a like-for-like basis. A stone list should identify what is confirmed and what remains subject to inspection. Videos should use neutral lighting when possible and should not be treated as a substitute for the grading report.
4 Verify report details
If a diamond is presented with a GIA grading report, check the report number and grading details through GIA's official service. Compare measurements and identifying information with the offered stone. Describe it as GIA-documented or accompanied by a GIA grading report.
5 Review the parcel distribution
For bulk parcels, inspect the number of stones in every relevant range. Ask for totals by count and carat weight. Check whether a few outliers are pulling the average away from the actual mix. Confirm whether the parcel is sold as one lot and whether substitutions require approval.
6 Confirm commercial and delivery terms
Agree on currency, payment timing, inspection conditions, return process if applicable, insured shipping and customs responsibilities. Confirm the receiving address and authorized contact before dispatch. Kether Diamonds provides insured worldwide delivery subject to destination and transaction requirements.
7 Keep a transaction record
Save the final brief, supplier proposal, approvals, report references, invoice and shipping documents together. A consistent record helps teams review performance and repeat successful specifications. Kether Diamonds can source individual natural diamonds and bulk parcels from 0.30 to 10+ carats, with an initial response to a complete sourcing request within 24 hours.
Related Kether resources
loose natural diamonds; wholesale round natural diamonds; wholesale fancy-shaped diamonds; wholesale natural diamonds buyer guide.
Submit a sourcing brief
Kether Diamonds works through direct relationships with manufacturers, cutters and trusted suppliers. Every diamond sold is accompanied by a GIA grading report. Sourcing requirements may cover natural diamonds from 0.30 to 10+ carats, including individual stones and bulk parcels. A complete sourcing request can receive an initial response within 24 hours, and insured worldwide delivery is available subject to the confirmed transaction and destination terms.