Diamond and simulants
Lab-Grown Diamond vs Moissanite: A Buying Guide
Lab-grown diamond and moissanite are different materials. Compare disclosure, reports, measurements and the price for your jewellery project.
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Is a lab-grown diamond moissanite?
No. A laboratory-grown diamond is diamond. Moissanite is a different material, silicon carbide, while cubic zirconia is another simulant. Similar appearance does not mean identical composition.
GIA distinguishes laboratory-grown diamonds from simulants: lab-grown diamonds have essentially the same chemical and physical properties as natural diamonds. Their laboratory-grown origin still needs to be clearly disclosed.
What should the description tell you?
| Material | Check before choosing |
|---|---|
| Natural diamond | Explicit natural origin and documentation for the stone. |
| Lab-grown diamond | Laboratory-grown / lab-grown disclosure and a matching report where available. |
| Moissanite | The material’s actual name; do not compare it as a diamond of equal weight. |
Terms such as “created stone” or “diamond sparkle” leave important details unanswered. Request the precise material, measurements in millimetres and the document supplied with the purchase. If a listing uses “one-carat equivalent”, establish whether that describes approximate visible size or actual weight.
For a lab-grown diamond, read the report type and date. Different laboratories and services do not necessarily use identical designations. Our GIA and IGI guide explains what to check; verify the report number with its issuer. A photograph or a claim that a stone “passes a tester” is not enough to establish origin.
Compare prices for the actual jewellery project
If your brief requires a laboratory-grown diamond, start in the lab-grown diamond catalogue. Set shape, weight and budget, then compare measurements, available reports and the final price. Use our natural vs lab-grown diamond guide to compare the two origins.
When comparing a moissanite quotation with a lab-grown diamond quotation, list material as a separate field. Align visible size, stone price, setting, metal and terms so you can see what changes the total. A lower price alone establishes neither identity nor a defect.
Contact us about a specific stone with its product link and your jewellery requirements if the report or measurements need clarification. Resolve those details before selecting a setting or comparing a loose stone with a finished ring.
From information to a precise shortlist.
Apply the criteria to the current catalogue, then verify documentation, price and availability for the selected stone.
Open the catalogue