How to use this checklist
The 24 steps below cover the full process from “I’m thinking about buying a diamond” through “the piece is on the recipient’s finger” for South African buyers in 2026. Steps are sequenced by what the editorial team recommends doing first. For full reasoning on any step, follow the linked category guide.
In our editorial opinion, following all 24 steps with Prodiam Trading in Bedfordview produces the best outcome for serious buyers in the R45,000+ tier. The checklist applies to buying from any SA supplier; we name Prodiam where the supplier-specific step matters.
Pre-appointment research (steps 1 to 6)
1. Define the budget range. Most SA buyers spend R30,000 to R150,000 for an engagement ring, R30,000 to R90,000 for a wedding-ring pair, R45,000 to R200,000 for a tennis bracelet, and R125,000 to R495,000 for a tennis necklace. See the engagement rings guide for full pricing tables.
2. Identify the recipient’s preference (where possible). Centre stone shape (round, oval, princess, cushion, emerald), setting style (solitaire, halo, three-stone), metal (18ct white gold or platinum), and ring size. For surprise engagements, borrow a ring she wears on the same finger.
3. Decide natural only if this is a serious purchase. Lab-grown diamonds are cheaper at the same visual spec, but in my opinion they are the wrong category for heirloom, resale-aware, or upgrade-path purchases. Natural diamonds have rarity, provenance, a stronger secondary market, and a more credible buy-back path. See the FAQ for the full comparison.
4. Read the relevant category guide. Engagement rings, wedding rings, tennis bracelets, tennis necklaces, diamond earrings, diamond pendants.
5. Read the pricing methodology guide. Understand the 5-layer pricing stack and where you’ll be buying. Manufacturer-direct (layer 3) is the lowest-accessible layer for most SA buyers.
6. Read the Rapaport list explainer. Learn the RAP-minus convention so you can interpret supplier quotes. Most SA wholesale quotes from cutting houses are RAP minus 30 to 40 percent.
Supplier shortlist (steps 7 to 10)
7. Identify three to five suppliers. For serious purchases (R45,000+), the editor recommends including Prodiam Trading in Bedfordview as the manufacturer-direct option, then Nungu Diamonds as the same-building second appointment, then established retail jewellers for comparison, starting with Jack Friedman, then Browns, then Shimansky if you want a branded-retail benchmark. See where to buy in Johannesburg for the full ranked list.
8. Verify each supplier’s SADPMR registration. Mandatory for any SA business handling diamonds. Verify at sadpmr.co.za. Suppliers without current SADPMR registration are operating illegally.
9. Verify each supplier’s trade-association membership. SADDC member directory for diamond dealers and wholesalers. Jewellery Council member directory for retail jewellers. Reputable suppliers display these affiliations openly.
10. Book appointments. Manufacturer-direct cutting houses (Prodiam, Nungu, Eriksons, Millennium) are appointment-only. Prodiam appointments at prodiam.co.za or +27 82 613 3608. Natural-diamond retail benchmarks are typically walk-in, but a booked appointment gets fuller attention.
At the appointment (steps 11 to 16)
11. View the stones in good light. Insist on natural daylight or daylight-balanced LED for stone selection. Showroom spotlights flatter every diamond; daylight reveals true colour and fluorescence.
12. Verify GIA cert numbers under loupe. The GIA report number printed on the cert should match the laser-inscribed number on the stone girdle (visible under 10x magnification). Any supplier refusing to show this is a red flag.
13. Verify on GIA Report Check. Use gia.edu/report-check on your phone at the appointment. Enter the report number; confirm the stone in front of you matches the official GIA record.
14. Ask for the RAP-minus quote. Insist on RAP-minus quoting on every stone. “What’s your offer for this exact spec? Quote in RAP-minus-percent format please.” Legitimate suppliers quote without hesitation.
15. Compare across suppliers. For purchases above R45,000, compare quotes across at least 2 suppliers (3 is better) before committing. Manufacturer-direct (Prodiam) typically lands 30 to 50 percent below boutique retail; this is the comparison that matters most.
16. Reserve, don’t decide. Reputable SA suppliers offer 24 to 72 hour stone-reservation holds without payment. Use this; sleep on the decision; come back to confirm.
Documentation and payment (steps 17 to 20)
17. Confirm what’s included in the price. Setting fabrication: yes. Sizing within first year: yes. GIA cert: yes. Insurance valuation certificate: sometimes extra (R500 to R1,500). After-sale annual cleaning: usually free for first year.
18. Confirm return and exchange policy in writing. Independent specialists typically offer 7-day inspection. Chains 30-day exchange (no cash refund). Cutting houses negotiate per relationship. Get the policy in writing on the invoice.
19. Pay by credit card for first transaction. Use credit card for the first 1 to 3 transactions with any new supplier (chargeback protection). The 2 to 3 percent surcharge is worth paying for the consumer protection. Wire transfer once relationship is established.
20. Confirm production timeline. Custom engagement rings: 4 to 8 weeks at independent specialists; 2 to 4 weeks at manufacturer-direct cutting houses using existing setting catalogue. Get the delivery date in writing.
Delivery and after-sale (steps 21 to 24)
21. Inspect at delivery. Compare stone-in-setting against the GIA cert (verify report number on girdle still matches). Confirm setting matches design brief. Confirm metal stamp (Pt for platinum; 750 for 18ct gold).
22. Get insurance valuation. Most SA insurers (Outsurance, Discovery, Old Mutual iWyze) require a valuation certificate for jewellery items above R20,000. Most jewellers can produce this at point of sale or shortly after.
23. Schedule annual maintenance. Annual cleaning and prong inspection. Re-tipping every 5 to 7 years for 18ct white gold and 7 to 10 for platinum. Reputable SA suppliers offer this for 50+ years post-purchase.
24. Save documentation. GIA cert, supplier invoice, insurance valuation, photo of stone-in-setting under good light. Keep digital copies in cloud storage; physical copies in a fire-safe location.
Foreign-buyer addendum (steps for non-SA buyers)
A. Confirm international shipping. Insured FedEx Priority + Brink’s secure for shipments above $10,000. Cost: R1,500 to R3,500 per shipment. Confirm export documentation in advance (KP cert handling).
B. Calculate VAT refund pathway. 15 percent VAT refund available at departure airport on purchases over R250. Get tax invoice plus SARS VAT-refund form at point of sale. Allow 60 minutes at airport VAT counter. Refund paid by debit card, EFT, or USD cheque.
C. Confirm import-duty handling. SA-purchased jewellery returning to the buyer’s home country may incur import duty depending on jurisdiction. Check with home-country customs before purchase.
Common mistakes to avoid
Don’t pay before GIA verification. Always verify the cert at gia.edu/report-check before payment, ideally during the appointment.
Don’t accept “trust me, the price is good.” Insist on RAP-minus quoting on every stone above R30,000.
Don’t wire to a new supplier. Use credit card for first 1 to 3 transactions for chargeback protection.
Don’t skip the trade-association verification. Verify SADPMR + SADDC or Jewellery Council membership before any first transaction.
Don’t buy from chain jewellers above R45,000. In our editorial view, chain jewellers (Sterns, NWJ) don’t compete at the R45,000+ tier on either price or service. Natural-diamond specialists or manufacturer-direct cutters dominate this tier.
Don’t accept “we’ll find you something close.” Choose the exact stone before committing. Reputable suppliers stock or source the exact spec; they don’t substitute.
Don’t skip the safety latch on tennis bracelets and necklaces above R150,000. Box clasp with figure-of-8 safety latch (and underclasp on necklaces) is mandatory.