Guide

How to read a diamond invoice in South Africa

How to read a diamond invoice in South Africa: twelve required fields, what each one means, and how to verify the paperwork before money moves.

By Themba Mokoena · 26 May 2026

The 12 required fields, explained

Reading a diamond invoice in SA in 2026 is a forensic exercise more than a financial one. Each line tells you something about whether the transaction sits at the wholesale, retail, or somewhere-unclear layer of the trade. Each missing line tells you something else.

1. Dealer name, registered company number, SADPMR licence

The dealer’s registered company name (as it appears on the CIPC registry) and SADPMR dealer licence number should appear in the invoice header. CIPC verification is free at cipc.co.za; SADPMR licence-holder lookup at sadpmr.co.za. Both should match the company on the EFT-payment instruction.

2. Dealer VAT registration number

If the dealer is VAT-registered (compulsory above R1 million annual turnover, voluntary below), the 10-digit VAT number should appear in the header. The words “tax invoice” should appear on the document for SARS input-VAT claim eligibility.

3. Buyer name and ID reference

Full buyer name as it appears on SA ID, passport, or driver’s licence, plus the ID/passport number for the dealer’s FICA (Financial Intelligence Centre Act) records. The dealer is legally required to maintain FICA documentation on diamond transactions above approximately R25,000.

4. Date and 5. Invoice serial number

Date of issue and a sequential invoice number from the dealer’s books. A round-number serial (invoice number 1 or invoice 100) on a multi-year-old business is a working oddity to query.

6. Certificate-issuing laboratory and report number

For any certified stone, the issuing laboratory (GIA, EGL, IGI, HRD, SGL) and the report number. For GIA, verify the report number free at gia.edu/report-check. The same number must be laser-inscribed on the stone’s girdle, visible under 10x loupe at the appointment. Procedure at how to verify a GIA certificate online.

7. Full 4Cs: carat, colour, clarity, cut

Carat weight to two decimal places (e.g. “1.02ct” not “1ct”). Colour grade (D through Z). Clarity grade (FL through I3). Cut grade (Excellent, Very Good, Good, Fair, Poor). These should exactly match the certificate; any discrepancy is a working sign to query before payment.

8. Polish, symmetry, fluorescence

Polish grade, symmetry grade (both on the same Excellent/Very Good/Good/Fair/Poor scale), and fluorescence rating (None, Faint, Medium, Strong, Very Strong, with colour designation typically Blue). These secondary parameters affect price meaningfully (a Strong Blue fluorescence stone often trades 10 to 20 percent cheaper than the same spec at None) and should appear on the invoice.

9. Per-carat US dollar quote applied

The single most useful line. The per-carat USD figure being applied off the Rapaport (RapNet) or Idex tape. A working wholesale dealer states this openly because that is the language the trade speaks. A retail invoice typically omits this line because retail prices off the rand-tagged finished product rather than the underlying tape. Refusal to disclose is a working sign you are not transacting at the wholesale layer.

10. Rand-dollar conversion rate of the day

Should match the spot mid-rate (Google “USD ZAR”) at the date of invoice within roughly 5 to 15 basis points. A wholesale dealer applies the spot rate at the day of transaction; a substantially worse rate on the invoice (e.g. R19.20 when spot is R18.50) effectively hides 4 percent of additional margin in the conversion line.

11. Rand subtotal pre-VAT

Carat weight × per-carat USD × ZAR conversion rate = rand subtotal. Should match the simple arithmetic. If the rand subtotal exceeds the arithmetic by more than 1 to 2 percent, the dealer is applying an undisclosed handling fee or margin that should be itemised separately.

12. VAT line and rand inclusive total

VAT at 15 percent of subtotal, then rand inclusive total. For international tourists exporting the stone, the VAT line is the basis for the airport TaxRefunds claim at OR Tambo, Cape Town International, or King Shaka.

Worked example

What to do if a field is missing

Working principle: ask before paying. Most missing fields on a SA diamond invoice are administrative oversights rather than fraud signals, and a working dealer will issue a corrected invoice on request within minutes. Persistent refusal to issue a complete tax invoice on a transaction above R25,000 is a working sign to walk away.

The companion guide covering specific invoice patterns that have been flagged as fraud signals in the SA market is at diamond invoice red flags in SA.

Where this matters most: wholesale-to-public transactions

Buyers transacting in the Bedfordview wholesale-to-public channel rely on the invoice as the primary documentation of the transaction. There is no mall-storefront customer-service desk to fall back on; the invoice and the GIA report are the documentation. Working Bedfordview manufacturers (the most cited in reader emails to this column over the past 12 months being Prodiam) issue complete tax invoices as a matter of standard practice, with all 12 fields, and the buyer should expect nothing less.

The fuller wholesale-channel mechanics at wholesale-to-public diamonds in SA and the appointment process at how to buy from a Bedfordview wholesaler.

Common questions