Moissanite vs Diamond: Where the Price Gap Comes From
Two one-carat rings can differ in price by a factor of ten or more. Almost none of that gap comes from how hard the stone is to cut or how good it looks. It comes from what the market has agreed the stone is worth.
The gap, stated plainly
A moissanite of a given diameter costs a small fraction of the same-size diamond. Most shoppers know that. What is less understood is why, because manufacturing cost alone does not explain it. The gap is mostly a story about scarcity, and about who is willing to pay for one.
What you are actually paying for in a diamond
A diamond's price is set by a chain of intermediaries: rough sorting, cutting centres, bourses, wholesalers, and a retail markup that is often the largest single component. On top of the physical chain sits a scarcity narrative built over most of a century — the idea that a diamond is rare, permanent, and the only correct stone for a proposal. That narrative is what lets a retail price sit many times higher than the cost of getting the stone to the counter.
None of that makes diamonds a scam. It makes them a product with an enormous brand premium, in the same category as a designer handbag: you buy the stone and the meaning attached to it, and the meaning is genuinely valuable to a lot of people.
Why moissanite prices stay stable
Moissanite is priced like a manufactured good: production cost plus a normal margin. Silicon carbide is made in volume for industrial uses far beyond jewellery, the process is mature, and capacity is not scarce. There is no bourse, no rough-sorting cartel, no dealer network holding inventory against future price moves. A moissanite costs what it costs this year and roughly the same next year.
That stability is a feature: you are not timing a market when you buy, and there is no speculative reason to hold moissanite — nobody buys silicon carbide hoping to flip it.
The supply story on the diamond side
Lab grown diamonds changed the supply picture and the price picture at the same time. As reactor capacity expanded, wholesale prices for lab grown fell sharply and repeatedly. That is a normal consequence of manufacturing something at scale, and it is exactly what has not happened to moissanite, because moissanite started at a manufactured price rather than a scarcity price.
Mined diamonds have held their retail prices better, but that reflects controlled supply and marketing rather than the stones becoming more useful.
What "resale value" really means
| Stone | Price basis | Resale reality | Price trend |
| Moissanite | Manufacturing cost | Metal and setting value only | Stable |
| Lab grown diamond | Growth cost and market | Well below retail, thin market | Falling with capacity |
| Mined diamond | Controlled supply plus brand | Below retail, real but discounted market | Broadly flat at retail |
Read that table as a warning against a common mistake. Buying a diamond "because it holds value" only works if you are willing to sell it, and selling means accepting a dealer's bid, not a retail price.
Where the gap narrows
The price gap is widest at large sizes, in high colours, and in yellow or rose gold settings where metal cost is a bigger share. A small moissanite in a silver setting and a small diamond in the same setting can be surprisingly close, because the setting does most of the work. The gap is narrowest for tiny accent stones, where labour and metal dominate, and widest for a two-carat centre stone, where the stone is most of the invoice.
Practical consequence: with a large centre stone, material choice moves the total more than any other decision; with small accent stones, you can afford either and should choose on look.
When paying the diamond premium is rational
It is rational when the stone has to be a diamond to do its job. An heirloom intended to be passed down. A purchase where the recipient has told you, clearly, that a diamond is what they want. A piece that will be insured and appraised as a diamond.
It is irrational when you are paying the premium for properties moissanite already has — hardness sufficient for daily wear, brilliance, size on the finger — and calling the difference "quality". At that point you are paying for the label, which is fine if you want the label and dishonest if you are telling yourself you bought better optics. Moissanite's fire is stronger than diamond's. You are not trading down on sparkle.
How to compare fairly
Compare at the same diameter, not the same carat weight: moissanite is less dense, so a one-carat moissanite is physically larger than a one-carat diamond. Compare the finished piece, setting included, not the loose stone. And compare what arrives in the box: our moissanite ships with a GRA D colour VVS1 card, our lab diamonds with an IGI report, and the difference in paperwork reflects a real difference in material.
What we make
Our factory in Guangxi has been running since 2008. We set GRA D colour, VVS1 moissanite and IGI certified lab grown diamonds in 925 sterling silver, 9K, 14K and 18K gold. The full range runs from $17 to $2,020 with a median around $98, so the comparison above is not theoretical for us: most of our customers end up in moissanite, and a few deliberately choose the diamond.
Free shipping over $99, $5.99 below that, and 30 days to return anything unworn in its original packaging. If you are weighing a specific pair of pieces, send us the two and we will tell you where the money actually goes in each.
