Natural, Grown or Moissanite
Four materials, one look. The difference is the price — and what comes back.
The same material and the same look. Priced as a manufactured good, and resale reflects that.
$1,050
against $7,000 natural · about 85% less
Expect around $105 back — near 10% of what you paid.
You keep $6,000 today, and give up the resale.
Broad market ratios, not a quotation. Lab-grown prices have fallen every year as growing capacity has scaled, so treat any figure here as a snapshot.
Natural, lab-grown, moissanite: what the same look costs in each
Four materials get set in engagement rings and only one of them is rare. A lab-grown diamond is the same crystal as a mined one, with the same hardness and the same optical properties — a grader needs specialist equipment to tell them apart, and no eye can. Moissanite is a different mineral that is brighter and slightly softer. Cubic zirconia is a soft, heavy simulant that clouds with wear.
Because they look so alike, the honest comparison is price, and then resale. This instrument prices the same stone across all four from a single natural quote.
What the discounts look like in 2026
Lab-grown diamonds now sell for roughly ten to twenty percent of a comparable natural stone, and the gap widens with size because natural rarity does the opposite. Moissanite lands lower still, at a few percent. Cubic zirconia is priced as costume jewelry — you are buying the setting, not the stone.
Lab-grown prices have fallen every year as growing capacity has scaled, which is excellent news if you are buying and unwelcome news if you own one. Any figure here is a snapshot.
Resale is where they part company
Natural diamonds have a real, if unglamorous, secondary market: expect thirty to fifty percent of retail privately. Lab-grown stones compete against next year's cheaper production, so recovery is in the low single digits to around ten percent. Moissanite and cubic zirconia have effectively no resale market at all.
None of that is an argument against buying grown or simulated stones. It is an argument against thinking of them as an asset.
Wear and durability
Diamond, natural or grown, is 10 on the Mohs scale and will outlast you. Moissanite at 9.25 is harder than sapphire and entirely practical for daily wear, though its extra fire reads as a slightly different sparkle that some people notice and some prefer. Cubic zirconia at 8.5 abrades, scratches and goes cloudy, typically within a few years of everyday use.
| Material | Price vs natural | Typical resale | Hardness |
|---|---|---|---|
| Natural diamond | 100% | 30 – 50% of retail | 10 Mohs |
| Lab-grown diamond | 8 – 20% | 5 – 10% of retail | 10 Mohs |
| Moissanite | 3 – 7% | Negligible | 9.25 Mohs |
| Cubic zirconia | Under 1% | None | 8.5 Mohs |
Broad US market ratios for a comparable stone, not quotations. Lab-grown pricing has been falling year on year.
Questions we are asked
- How much cheaper are lab-grown diamonds?
- Around 80 to 90 percent cheaper than a comparable natural stone, and the discount deepens as carat weight rises.
- Can a jeweler tell a lab-grown diamond from a natural one?
- Not by eye or with a loupe. It takes spectroscopic screening equipment, which is why reputable reports state origin and why disclosure matters.
- Is moissanite better value than a lab-grown diamond?
- It costs less again, and wears well. The difference is optical: moissanite disperses more light, so it flashes rainbow colors more strongly than a diamond. Look at both before deciding.
- Do lab-grown diamonds lose value?
- Yes, quickly, because new production keeps getting cheaper. Buy for appearance and budget, not for resale.
- Is cubic zirconia the same as moissanite?
- No. Cubic zirconia is softer and clouds with wear; moissanite is nearly as hard as diamond and keeps its brilliance indefinitely.
Either WayRead the stone itself
Grown or mined, the instrument reads what is in front of it and gives you a range to start from.