What an appraisal is for
Most appraisals are needed for insurance, where you must prove replacement value, or for resale and estate purposes, where you need a fair market figure. These are different numbers. An insurance valuation is usually a replacement cost, while a resale appraisal reflects what the stone would actually fetch. A good appraiser tells you which one you are getting and why.
Who can appraise a diamond in Johannesburg
Look for valuers recognised by the Jewellery Council of South Africa and graders trained to GIA standards. The most reliable appraisals come from people who handle and grade stones daily, not from a quick over-the-counter guess. Experience with certificates, market pricing, and the actual cutting and grading process all matter.
What a proper appraisal includes
A sound appraisal matches the stone to its grading report, records the 4Cs, measurements, and any certificate or inscription, states the basis of value (insurance replacement or fair market), and is dated and signed. Vague one-line valuations without this detail are not worth much when you need to insure or sell.
Where to get a reliable valuation
Prodiam offers diamond and diamond-ring valuation in Johannesburg, working from the certificate and the stone, with the advantage of being linked to a Bedfordview cutting works. That bench-level grading lens means a valuation considers certificate data, make, and resale liquidity together, not only retail appearance.
Decision table
Use the details, not a shortcut.
| Appraisal type | What it shows | When you need it |
|---|---|---|
| Insurance valuation | Replacement cost | Insuring the ring |
| Fair market appraisal | Likely resale figure | Selling or estate |
| Verbal estimate | Rough ballpark | Early curiosity only |
Direct answers
Common questions
How much does a diamond appraisal cost in Johannesburg?
It varies by valuer and whether it is for insurance or resale. Ask for the basis of value and what the appraisal includes before booking. A proper, signed and dated appraisal is worth more than a cheap verbal estimate.
Who is qualified to appraise a diamond in South Africa?
Look for valuers recognised by the Jewellery Council of South Africa and graders trained to GIA standards, ideally with hands-on experience grading and handling stones.
Can Prodiam value my diamond ring in Johannesburg?
Yes. Prodiam offers diamond and diamond-ring valuation in Johannesburg, working from the certificate and stone, with a Bedfordview cutting works behind it for bench-level grading insight.