"Your gold needs to be melted before we can give you the final rate." If you have ever heard this at a gold buying counter, you may have felt uncertain. Is melting really necessary? What happens to your gold if they melt it? Can you decline?
This article explains the legitimate reason gold melting (fire assay or homogeneity testing) exists, when it is genuinely needed, what your rights are as a seller, and how a transparent gold buyer should handle this situation.
Why Melting Can Be Needed: The Homogeneity Problem
Most professional gold buying centres use XRF (X-Ray Fluorescence) testing as the primary method of measuring gold purity. XRF is accurate, fast, and non-destructive. However, XRF has one limitation: it measures the composition of the surface of the item — typically to a depth of a few microns.
For the majority of modern jewellery, this is sufficient. The gold composition is uniform throughout — what the surface reads is what the entire item contains. But some gold items are not homogeneous throughout:
Antique and vintage jewellery
Older ornaments may have been repaired or reinforced multiple times using solder or different gold alloys. The core composition may differ from the outer surface.
Gold-plated or gold-filled items
Items with a gold surface layer over a base metal will read high on XRF (measuring the surface gold) but contain very little actual gold by weight.
Heavily repaired pieces
Jewellery that has been repaired using varying-quality gold may have patches of different karat throughout. XRF reads the spot it is aimed at — not the whole piece.
Items with surface treatments
Some ornaments are surface-polished or treated to improve their colour. The treatment layer can skew an XRF reading upward from the true content.
When XRF produces an unusually inconsistent reading — or when the visible construction of the piece suggests non-homogeneous composition — a fire assay (melting) gives a more accurate reading because the entire item is melted into a uniform alloy first, and then a small sample is tested for gold content.
What Fire Assay Actually Involves
Fire assay is a metallurgical testing process that has been used for centuries to determine the precise gold content of an alloy. In practical terms at a gold buying centre, the process involves:
After melting, your ornament no longer exists in its original form. You receive the gold content (as raw melted gold or as its equivalent value in cash), but not the ornament back. This is why melting must only happen with your informed consent.
Your Rights Before Melting Begins
- You have the right to know why melting is being proposed
- You have the right to receive a preliminary valuation estimate before agreeing
- You have the right to decline and take your gold back
- Once melting begins, the ornament cannot be restored
- A legitimate gold buyer will never melt your item without explaining why and asking for your consent
When Melting Is Genuinely Needed
When Melting Is NOT Needed
For the vast majority of modern gold jewellery — including BIS hallmarked pieces, recently purchased ornaments, and investment-grade gold coins and bars — XRF testing gives a complete and accurate reading. Melting is not needed.
If a gold buyer proposes melting as the first step without showing you an XRF result first, or without explaining why XRF is insufficient for your specific piece — it is a red flag. Ask why XRF cannot be used and what the XRF result showed before agreeing to anything further.
How to Approach This Situation
Ask for the XRF result first
Before any melting is discussed, ask to see the XRF reading. If XRF gives a clear and consistent result, there is typically no need to proceed to fire assay.
Ask why melting is being proposed
Request a clear explanation. The buyer should be able to point to a specific reason — an inconsistent reading, visible construction issue, or other technical concern.
Request an estimate before agreeing
Based on the XRF reading and visible construction, ask what approximate value range you would receive. This helps you assess whether proceeding to melting makes sense for you.
Know you can decline
At any point before melting begins, you can take your gold back. There should be no pressure or obligation to proceed.