Pricing
The Stone Is No Longer the Expensive Part
Lab grown prices fell far enough that on many rings the gold now costs more than the diamond. Almost nobody has updated where they spend.
Written by the Mapple Gems workshop, Surat Β· Updated 24 August 2026
Short answer
Lab grown diamond prices fell sharply between 2020 and 2024 and have settled near production cost, while gold has not fallen. On a modest ring the metal and the labour can now exceed the stone. That inverts the old advice: the stone is the cheap part to upgrade, and the shank is where skimping actually costs you.
The standard way to think about a ring budget was formed when the centre stone dominated everything. Spend most of it on the diamond, take whatever setting comes with it. That logic is now out of date, and the arithmetic has quietly reversed on a lot of pieces.
What changed
Lab grown diamond production scaled rapidly and prices per carat fell steeply from 2021 onward, then settled near production cost. Moissanite was already inexpensive. Gold, meanwhile, is a traded commodity that has done nothing of the sort.
So the two halves of a ring moved in opposite directions. A ring that was 70% stone and 30% metal-and-labour five years ago can now be closer to the reverse, particularly at smaller centre sizes.
The one component you can actually verify
This is the practical consequence and it is genuinely useful.
Gold trades on a public daily market. So the metal in a ring can be checked independently: grams Γ fineness Γ the day's gold price. That gives you a verifiable floor for one part of the price. Nothing else in jewellery works like that β not the stone, not the labour, not the brand.
Which makes gram weight the single most useful number to ask for, and its absence from a listing informative in itself. Two rings described identically can differ twofold in the gold they contain.
| Component | Can you verify it? | How |
|---|---|---|
| Metal | Yes | Grams Γ fineness Γ public spot price |
| Lab grown centre stone | Partly | Report gives colour, clarity, mm β but no cut grade on fancy shapes |
| Moissanite centre | No | Nothing is graded; no upper price anchor exists |
| Melee and accents | No | Never individually certified in any material |
| Bench labour | Only by inspection | Level stone row; crisp finishing; a finished gallery |
Where the money should go now
If the stone has become the cheaper and more replaceable component, the sensible allocation follows.
- Shank thickness first. 1.8mm minimum at the base, 2mm under a large stone. This is what decides whether the ring needs bench work in year ten or year twenty, and it is the specification almost no listing states.
- Cut second. No laboratory grades cut on any fancy shape, so brightness is entirely a buying decision. A bright, well-proportioned stone beats a higher colour grade every time.
- Structure third. Prong placement, gallery, profile height, euro shank. All fixed at casting and none of them changeable later.
- Grades last. HβI in warm metal, G or better in white. Buying above that pays for a difference the setting removes.
And one saving that is genuinely free: prices step at round carat figures, while physical size rises smoothly. A 1.90ct stone is around two tenths of a millimetre shorter than a 2.00ct one and sits below a threshold. Ask for both quotes.
From our bench in Surat
There is a conversation that costs customers money and it happens constantly: someone arrives with a budget they will not name, hoping to be quoted keenly. What actually happens when a budget is withheld is that a workshop protects its margin somewhere invisible β and the invisible place is almost always the shank, because half a millimetre off the band is the one saving nobody notices in a photograph.
So, against our own short-term interest: name the figure. It lets us save on purpose β a colour grade the metal will hide, a weight just under a threshold, three-quarter pavΓ© instead of full β rather than quietly. And the fair criticism of us: our product pages still do not publish gram weight or shank thickness, which are exactly the two numbers this article tells you to demand. Ask and we will answer; we would rather be held to it.
Two figures that are not evidence of value
An insurance valuation above what you paid. A valuation states retail replacement cost and is deliberately conservative. A figure higher than your purchase price is routine and proves nothing about the deal.
A permanent struck-through price. If the comparison figure is always there, it is a pricing device rather than a discount.
Worth adding: because lab grown prices fell and some retailers repriced while others did not, the same specification can cost 40β60% more at a seller carrying older inventory. That gap has nothing to do with the stone.
The comparison to run
Put two rings in one table and fill it in. The empty cells are the answer.
- Metal and karat, as a fineness number β 585 or 750.
- Finished gram weight.
- Centre stone in millimetres, plus material.
- Accent material and count.
- Shank width and thickness at the base.
- Whether the price is landed β duties included or not.
One verification question worth more than all of them: ask for a photograph of a piece part-finished β cast but not yet set. No reseller can produce one at any price, because nobody photographs a half-finished ring for a catalogue.
Frequently asked questions
Does the gold cost more than the stone now?
On many modest rings, yes. Lab grown diamond prices fell sharply from 2021 and settled near production cost while gold did not fall, so the metal and labour can now exceed the stone β particularly at smaller centre sizes.
How can I check whether a ring is fairly priced?
Start with the metal, because it is the only component you can verify independently: grams multiplied by fineness multiplied by the day's public gold price. That gives a floor. Ask for gram weight and shank thickness; their absence from a listing is itself informative.
Where should I spend the budget on a ring today?
Shank thickness first, then cut, then structural choices fixed at casting, then grades last. Stones are now the cheaper and more replaceable component; a thin shank is the thing that brings a ring back to a bench early.
Should I tell a jeweller my budget?
Yes. Withholding it does not produce a keener quote β it produces savings made where you cannot see them, usually a thinner shank. A stated figure lets a maker economise deliberately on things that genuinely do not show.
Does a high insurance valuation mean I paid well?
No. A valuation states what replacing the piece would cost at retail and is set conservatively, so a figure above your purchase price is normal. It is not evidence of value.
Ask us for grams and millimetres
We make in our own workshop in Surat, so we can answer both β and send a part-finished photograph if you want one.
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