Every lab grown diamond brand in India today advertises some version of the same reassurance: lifetime exchange, assured value, upgrade anytime. The words sound interchangeable. They are not.
The difference between an exchange policy and a cash buyback policy can be worth lakhs of rupees over a lifetime of jewellery ownership, and it is the single most revealing question you can ask any jeweller before buying.
Exchange versus buyback, in one minute
Exchange means the brand will accept your old piece as part payment, but only toward a new purchase from the same brand, on the brand's valuation terms. Your money stays inside their store. It is a loyalty mechanism, and it is usually the more generous of the two numbers precisely because of that.
Cash buyback means the jeweller will hand you money for your jewellery, at a percentage stated in writing, with no obligation to buy anything. Your jewellery remains what Indian families have always understood it to be: an asset you can liquidate in an emergency, for a wedding, or for a business opportunity.
Exchange is convenient. Buyback is protection. A trustworthy jeweller should offer both, and should tell you the two percentages without being chased for them.
Why most new brands avoid cash buyback
It is not villainy, it is business models.
Venture funded jewellery startups are built for growth: revenue, store counts, repeat purchases. An exchange-only policy guarantees the returning customer buys again. A cash buyback is a real liability sitting on their books, and liabilities are exactly what a growth story does not want.
Traditional jewellers, by contrast, have run buyback for generations, because their model is built on multi-decade family relationships. The willingness to give money back is precisely what earns the next generation's business.
So when you evaluate any brand, whether startup, corporate or family jeweller, the buyback question instantly reveals whose interest the policy really serves. We wrote about that difference in more depth in startup vs legacy jewellers.
The five clauses that decide everything
Whichever brand you are considering, read the policy document rather than the advertisement, and check these five things.
1. The percentages, in writing
"Assured buyback" without a number is not a promise. Ask for the exact figures: what percentage of the diamond value in cash, what percentage on exchange, and what percentage of the gold. If the answer is a range, or "depends on condition", or a verbal assurance from a salesperson, treat it as nothing.
2. Cash or credit?
Some policies quietly pay "buyback" as store credit. Credit is exchange wearing a different name. The test is simple: can you walk out with money and no new purchase? If not, it is not a buyback.
3. Gold valued separately, at the day's rate
The gold in your jewellery has an open market price that moves daily. A fair policy values it at the prevailing rate on the day you return the piece, not the rate on the day you bought it, and not a "scrap" rate with a refining deduction taken off the top. This is why we publish the daily gold rate openly on the site.
4. What is excluded
This is the clause people skip, and it is usually where the real limits sit. Custom and made to order work is commonly excluded across the trade, ours included, because a piece built to one person's specification cannot simply go back into stock. Ask before you commission, not after.
5. Certificate, invoice, and who honours it
Policies typically require the original certificate and the original invoice, so keep both somewhere safe. They are your jewellery's passport. And a policy honoured only through an app or a courier process is weaker than one you can walk into a showroom and invoke face to face. Our guide to reading an IGI certificate explains what that document actually records.
Where Goenka Jewellers stands, in full
Here is our policy, stated plainly and published on our return and buy-back policy page rather than buried in fine print.
Buy-Back: cash return of 100% on gold and 80% on diamonds, and 100% on diamonds when you exchange rather than encash, valued at market rates on the date of return.
Customised and made to order products are non-returnable and non-exchangeable.
Terms and conditions apply. Full policy on our return policy page.
Three things in that are worth drawing out, because they are where most policies quietly differ.
The exchange number is higher than the cash number
You get 80% of the diamond value if you want money, and 100% of it if you would rather put it toward a new piece. That gap is deliberate and it is the honest shape of the trade: cash costs us more to give than credit does, so cash pays slightly less. Any brand claiming an identical figure for both is worth a second question.
The gold is valued at the rate on the day you return
Not the rate on the day you bought, and not a scrap rate with a refining deduction. If gold has risen since your purchase, your gold component rises with it. On a piece held for a decade, that single clause is usually worth more than the diamond percentage.
Custom and made to order pieces are excluded
We would rather say this clearly than let you discover it later. A piece designed to your specification, in your size, with your chosen stone, cannot be resold as stock, and that is why custom work sits outside the return and exchange terms across most of the trade.
The practical consequence is worth thinking about before you commission. If the piece you are considering is one you might want to trade up in five years, an off-the-shelf design from our ready to ship collection keeps that door open in a way a bespoke commission does not. If the design matters more than the exit, commission it, with your eyes open.
What a buyback actually pays: a worked example
Percentages are abstract, so here is the arithmetic on a realistic piece: a 1 carat solitaire ring in 18K gold, with roughly 3 grams of gold in the setting.
| Component | Cash return | On exchange |
|---|---|---|
| Lab grown diamond, 1 ct, IGI certified | 80% of its value | 100% of its value |
| 18K gold, approximately 3 g | 100% at the rate on the day you return | 100% at the rate on the day you return |
| Making charge and GST | Not part of the metal or stone value, which is why we show them as separate lines from the day you buy | |
The gold leg is not fixed. It moves with the market, in your favour if gold has risen. And because the making charge and the tax are shown separately on your invoice from the outset, you can check the buyback arithmetic yourself rather than taking a number on trust. A jeweller who folds everything into one opaque per gram figure is a jeweller whose buyback you cannot verify. Ask anyone to break a quote into stone, gold, making and GST before you pay. If they will not, that tells you something.
What to keep, and where
A buyback policy is only as good as your paperwork. Three things to file the day the piece arrives:
- The IGI certificate for the centre stone, with its report number.
- The original invoice, showing the four line breakup.
- A photograph of the hallmark, including the HUID, which you can verify yourself in the BIS CARE app.
Photograph all three and keep the images somewhere that survives a lost phone. We keep our own records too, but a customer who arrives with documents is a customer whose valuation takes ten minutes rather than a week.
Why we can offer this
We are not spending investor money to buy market share. We are a manufacturing jewellery house in Kolkata whose only growth engine is that a family comes back, and sends others.
Being the manufacturer is what makes the arithmetic work. There is no reseller margin in the middle that has to be recovered, our diamond pricing is a flat per carat rate rather than one that climbs with size, and every gold component is HUID hallmarked and billed at the transparent daily rate. So the valuation at buyback time is arithmetic, not negotiation.
Frequently asked questions
Is cash buyback on lab grown diamonds unusual in India? Written cash buyback of any kind is rare in this category. Most brands offer exchange-led policies, which keep your money inside their store. Always compare the written terms of any brand you shortlist rather than the headline.
What is the difference between exchange and cash buyback? Exchange gives you credit toward a new purchase from the same brand. Buyback gives you money, with no obligation to buy anything. At Goenka Jewellers you get 100% of the diamond value on exchange, or 80% in cash, and 100% on the gold either way, valued at market rates on the date of return.
Does the buyback apply to made to order or custom pieces? No. Customised and made to order products are non-returnable and non-exchangeable. If keeping a future exit open matters to you, choose a ready to ship design rather than a bespoke commission, and ask us about it before you order.
How is the gold valued at buyback? At 100% of the market rate on the day you return the piece, not the rate on the day you bought it and not a scrap rate with a refining deduction. If gold has risen in the meantime, your gold component is worth more.
Why is the exchange percentage higher than the cash percentage? Because cash costs a jeweller more to give than credit does. You get 100% of the diamond value if you put it toward a new piece, and 80% if you want the money instead. That gap is normal, and a brand quoting the same figure for both is worth questioning.
Does the buyback apply to old purchases? It applies to eligible jewellery purchased from Goenka Jewellers, presented with its certificate and invoice. Visit us with the piece and the documents and we will value it on the spot.
What if I bought a lab grown diamond elsewhere? Bring it in. Our written buyback covers our own jewellery, but we are happy to evaluate outside pieces and advise you honestly on your options.
What documents do I need? The original IGI certificate and the original invoice. A photograph of the hallmark and HUID is useful as well. Keep all three from the day the piece arrives.
Buy with an exit, not just an entry. Explore our IGI certified collection, read the full buy-back terms, or book an appointment to see the terms in writing before you spend a rupee.
Goenka Jewellers. World of Lab Grown Diamonds. Crafting Legacy Forever.