Sell Diamonds South Africa
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However, we can still help you. We'll buy the gold or platinum setting at its full gold value, based on weight and karat. If you later locate the certificate, contact us again — the diamond can be purchased separately.
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Open WhatsAppSell Diamonds — What You Need to Know
Selling a diamond should feel clear, professional and transparent. At Sell My Gold we offer a trusted process built around client peace of mind, honest valuations and complete discretion from start to finish.
- Loose certified diamonds — GIA or IGI certificate required
- Diamonds set in gold or platinum jewellery
- All shapes — round, princess, oval, emerald, cushion, pear
- All sizes from 0.10ct upward
- Estate, inherited and unworn diamond jewellery
- Single stones and multi-stone pieces
- Diamonds must have a valid GIA or IGI certificate
- Uncertified diamonds cannot be purchased
- Certificate must be original — not a photocopy
- Without a certificate, we buy the gold or platinum setting only
- Contact us if unsure about your certificate — we'll advise
GIA vs IGI — What's the difference?
Both GIA and IGI are internationally recognised diamond grading authorities. Both are accepted by Sell My Gold. Here's what each means:
| Certificate | Issuing body | Accepted | Notes |
|---|---|---|---|
| GIA | Gemological Institute of America | ✓ Yes | The global benchmark for diamond grading — most recognised worldwide |
| IGI | International Gemological Institute | ✓ Yes | Widely accepted, commonly issued for lab-grown and natural diamonds |
| AGS | American Gem Society | ✓ Yes | Contact us to confirm — generally accepted |
| HRD | Hoge Raad voor Diamant (Belgium) | ✓ Yes | Contact us to confirm |
| No certificate | — | ✗ Diamond only | Gold or platinum setting purchased only — not the diamond |
How your diamond is valued — the 4 Cs
Diamond value is assessed against four internationally standardised criteria. Your GIA or IGI certificate lists all four:
| The 4 Cs | What it measures | Impact on value |
|---|---|---|
| Carat (ct) | Weight of the diamond — 1ct = 0.2g | Highest impact — larger diamonds are exponentially more valuable |
| Colour (D–Z) | Absence of colour (D = colourless, Z = light yellow) | High impact — D, E, F grades command premium prices |
| Clarity (FL–I3) | Absence of inclusions and blemishes | Moderate–high — Flawless to VS grades most sought-after |
| Cut (Excellent–Poor) | Quality of the cut and light performance | Major impact on brilliance and marketability |
Sell Diamonds South Africa — FAQ
What We Buy
Gold Jewellery
Rings, chains, bangles, earrings — broken or intact. We buy all karats: 9ct, 14ct, 18ct, 22ct & 24ct.
We buy all types of gold jewellery regardless of condition — broken, unworn, or inherited:
Certified Diamonds
Loose or set stones. GIA or IGI certificate required. All sizes from 0.10ct upward.
We buy certified diamonds of all shapes and sizes. Here's what you need to know:
- Loose certified diamonds (GIA, IGI)
- Diamonds set in gold or platinum jewellery
- All shapes — round, princess, oval, emerald
- All sizes from 0.10ct upward
- Estate and inherited diamond jewellery
- Diamonds must have a valid GIA or IGI certificate
- Uncertified diamonds are not purchased
- Certificate must be original, not a copy
- Contact us if unsure about your certificate
Krugerrands
Full, half, quarter or tenth ounce. Bought at live market rates with immediate EFT payment.
We buy Krugerrands at live market rates — single coins or full investment portfolios. Immediate EFT payment on every purchase.
Sell by Courier
Fast, secure, nationwide delivery. 100% satisfaction guaranteed with full insurance.
WhatsApp is the fastest way to reach us. We respond during business hours — Mon–Fri 08:00–17:00 · Sat 08:00–13:00.