Your natural diamond
Loose or set. Evaluated on its own merits — cut, color, clarity, carat weight, proportions and condition — at today’s market rather than at what was paid for it.
Southbridge, Massachusetts · Family-owned since 1920
Natural Diamond Upgrade Program
Bring in the natural diamond you already own. Leave knowing exactly what it can become.
If you own a natural diamond — loose, set in a ring you have worn for twenty years, or tucked inside a piece you inherited and never wear — Morin Jewelers will evaluate it in person, free, and show you how its value can go toward a larger diamond, a finer one, a different shape or an entirely new setting.
It does not matter where the diamond was bought. There is no application, no receipt requirement and no obligation. You bring it to 409 Main Street, a GIA-graduate gemologist examines it while you watch, and you leave knowing where you stand — whether or not you decide to do anything that day.
Bring In Your Diamond.
Find Out What It Can Become.
We buy loose natural diamonds and diamond jewelry, and that value goes toward your upgrade. What your particular stone supports depends on the stone — so we look at it first, in person, and tell you plainly.
Book a Free Evaluation Text Us a Question 409 Main Street, Southbridge, MA · (508) 764-7250 · Hours & directions- Free
- In-person diamond evaluation
- Any
- Natural diamond, wherever it was bought
- GIA
- Trained gemologist at the counter
- 1920
- Three generations of the Morin family
How it works
Four steps, and the first one is just a visit
There is no form to fill in and nothing to qualify for. You bring the diamond in, we look at it together, and nothing is decided until you have seen the options side by side.
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Bring in your diamond
Loose, set or inherited — bring it as it is. Walk in during store hours, or book a time if you would like unhurried attention. A grading report or an old appraisal helps, but neither is required.
Walk-ins welcome Tue–Sat -
We evaluate it in front of you
Rob Morin — a graduate of the Gemological Institute of America and the third generation of his family at the counter — examines the diamond with proper instruments: cut, color, clarity, carat weight, proportions and condition. You hear what we see and why it matters, not just a number.
Free · no obligation -
We compare it against what’s available
Your stone goes next to natural diamonds from our inventory — including stones selected through our direct access to the Antwerp diamond exchange — under the same light, so you can see the step up rather than read about it.
Side by side, same light -
You decide, and we build it
If it makes sense to go ahead, we pair the new diamond with the right setting — one of our engagement rings, a setting for your own stone, or a custom design — and set it at our own bench. Your diamond never leaves town to be set.
Set at our bench in Southbridge
What to bring
- The diamond or the piece itselfThe only real requirement. Loose stones, rings, pendants and earrings are all fine.
- Any paperwork you haveA grading report, receipt or previous appraisal is helpful. It is never required.
- Anything else you are ready to part withGold and diamond jewelry you no longer wear can count toward the upgrade too.
- A photo of what you likeA ring you have saved or a shape you keep noticing. It gives us a starting point and often saves a second visit.
- A government-issued photo IDNeeded only if you decide to sell or trade a piece to us.
- Whoever you would like thereUpgrades are often a surprise and often a joint decision. Either way, there is room at the counter.
The program
Four ways to upgrade a natural diamond
“Upgrade” does not always mean “bigger.” These are the four directions people take, and they can be combined. In every one of them, the diamond you already own is the starting point — not something you have to walk away from.
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Path 01
Trade up to a new diamond
Put your diamond’s value toward a new natural diamond that is larger, better cut, whiter, cleaner or a different shape. We evaluate your stone, buy it toward the new one, and set the new diamond in your existing mounting or a new one.
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Path 02
Reset it in a new setting
Keep the diamond and change everything around it. A new setting can make the same stone look larger, sit lower, or suit the way you live now — a halo, a hidden halo, a lower profile or a different metal.
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Path 03
Build around it
Add to what you have: side stones, a three-stone design, a halo or a matched band. The center stays exactly as it is; the ring around it grows.
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Path 04
Upgrade, and keep it in the family
Choose a new diamond for your ring and keep the original — reset as a pendant, a pair of earrings, or a ring for a son or daughter. Many people choose this path for a stone with a story attached.
Resetting or redesigning? You see it before it is made.
Paths two, three and four usually involve a new design. Our custom process runs from consultation and sketch to a 3D CAD rendering you can review, then setting and finishing at our own bench in Southbridge. See our custom design process.
01 · Sketch 
02 · 3D CAD 
03 · Finished
When people usually come in
- A milestone anniversaryThe tenth, the twenty-fifth, or a vow renewal.
- The ring came first, the budget came laterA diamond chosen early on, and a chance to choose again.
- An inherited diamond nobody wearsA stone with a story, sitting in a drawer.
- A setting that has worn thinProngs, shanks and head settings wear with decades of daily life.
- A change in how you liveA job or a hobby that calls for a lower, more secure setting.
- Taste simply changedA different shape, a different metal, or a design that feels more like you now.
Start with an evaluation
It is free, it happens in one visit, and there is no obligation attached. Bring the diamond to Southbridge and find out which of the four paths is open to you.
Book a Free Evaluation Call (508) 764-7250Prefer to just stop by? Walk-ins are welcome Tuesday through Saturday.
What goes toward your upgrade
Your diamond is the start. It does not have to be the only thing.
Most people come in thinking only about the center stone. Our gold and diamond buying service covers more than that, and what we buy from you can go toward the new piece.
The mounting it came in
If the old setting is being retired rather than reused, the gold in it has value of its own and can be counted as well.
Diamond jewelry you don’t wear
Earrings, pendants, bands, a bracelet in a drawer. We buy loose diamonds and diamond jewelry, not just engagement rings.
Gold in any condition
Broken chains, single earrings, outdated rings. Gold jewelry in any condition can be exchanged for cash or for in-store credit toward the new piece.
Appraisal value is not trade value
The figure on an insurance appraisal is a replacement value: roughly what it would cost to buy a comparable piece new, at retail, for the purposes of a policy. What a diamond represents toward a trade or an upgrade is a different figure, and it is usually lower. That is true at every jeweler, not just ours.
We would rather explain that across the counter than have you discover it later. When the new piece is finished, we can also prepare an up-to-date insurance appraisal for it.
Covering the difference
Once the value of what you bring in has been applied, the balance can be paid however suits you. Morin Jewelers offers financing through the Iddeal Credit Card and Affirm, and layaway with 20% down and up to 90 days to pay.
Plan lengths and approval are handled by the financing providers. See financing options.
Straight answer
What we can and cannot tell you before we see the stone
We do not publish a fixed trade-in percentage, a minimum purchase, an expiration window or a list of qualifying stones — because a diamond upgrade genuinely depends on the diamond in front of us. Cut, color, clarity, carat weight, proportions, condition and the current market all move the number, and any figure quoted before we have seen the stone would be a guess.
What we can promise is how the conversation goes: you bring the piece in, it is evaluated while you watch, and you leave knowing where you stand, with no cost and no obligation. Questions first? Call or text (508) 764-7250, or book a time.
Worth knowing before you trade
A bigger number isn’t always a bigger-looking diamond
This is the part most people have never had explained, and it decides whether a new stone actually feels like a step up. Carat is a measure of weight, not size — and how that weight is cut decides how much of it you can see.
Cut
The C you can see across a room. A better-cut diamond returns more light and can face up larger than a heavier one cut deep. Spend here first.
Face-up size
Measured in millimeters across the top, not in carats. We measure both stones so you can compare spread, not just weight.
Color
Neighboring grades are hard to tell apart once a stone is set. Warmer grades can look lovely in yellow or rose gold; whiter grades matter more in white metals.
Clarity
What matters is whether you can see an inclusion without magnification. Past “eye-clean,” the difference lives on the report rather than in the ring.
Shape
Ovals, pears and marquise shapes typically look larger face-up than a round of the same weight, because more of the stone is spread across the top.
The goal of an upgrade is a diamond you like looking at more — not a better number on a report. That is why we put both stones under the same light in front of you. Read our guide to the 4Cs.
Bought somewhere else?
How this differs from a chain-store “lifetime upgrade”
Many national retailers advertise a lifetime diamond upgrade. Those programs are real, and for the right customer they are a good deal. But they are built around one question — did you buy it here? Ours is not.
Morin Jewelers
Natural Diamond Upgrade Program
- Which diamonds
- Any natural diamond — bought here, bought elsewhere, bought online or inherited.
- Paperwork
- Helpful, never required. We examine the diamond itself.
- Condition
- Bring it as it is. Wear or damage is part of the evaluation, not a reason to turn it away.
- How value is set
- A free, in-person evaluation of the stone at today’s market, explained while you watch.
- What happens next
- Your choice of four paths — trade up, reset, build around it, or upgrade and keep the original — set at our own bench.
Typical national chain
Lifetime upgrade policy
- Which diamonds
- Usually only diamonds bought from that retailer. Lab-grown diamonds usually trade only for lab-grown.
- Paperwork
- The original receipt and, often, the original grading report.
- Condition
- Original, undamaged condition. Chipped, cracked or altered stones are generally excluded.
- How value is set
- Credit equal to the original purchase price, not including tax.
- What happens next
- A new purchase, usually at least twice the original price; some programs ask for 1.5 times.
If your diamond came from a chain with a lifetime policy, read its terms first — it may be your best route, and we are happy to help you understand what you have either way. If it did not, or if it came from a grandparent, that program was never open to you. This one is.
Why bring it here
A century of looking at diamonds on Main Street
The person who evaluates your diamond is the person who will set your next one — and who will still be here to check the prongs years from now.
Oliver Morin founded the business in 1920. In 1957 his son, Robert E. Morin, took over and built it alongside his wife, Lorraine. Today it is run by their youngest son, Robert L. Morin — a graduate of the Gemological Institute of America, a goldsmith and a bench jeweler currently pursuing his Master Bench Jeweler certification.
Our natural diamonds come through direct access to the Antwerp diamond exchange, where they are selected in person rather than off a screen. Setting, sizing, restoration and custom work happen at our own bench instead of being shipped to an outside vendor.
More about Morin Jewelers · How we source in Antwerp · Customer reviews
- Evaluated by a gemologist, not a price listA GIA graduate looks at your actual stone and explains what drives its value.
- A wider field to choose fromDirect Antwerp access means far more natural diamonds than one showcase can hold.
- Set at our own benchYour diamond is set in Southbridge, not shipped away to be finished.
- Still here next yearCleaning, prong checks, resizing and appraisals from the same store, for as long as you wear it.
Find your next diamond
Start from a shape you like
Browse our natural diamond inventory online, or see considerably more in person in Southbridge. Depending on your existing stone and what is available, an upgrade can move in any of these directions — or several at once.
Common questions
Natural diamond upgrade FAQ
Straight answers to the questions people ask us most about upgrading, trading in and resetting a natural diamond in Central Massachusetts.
What is a natural diamond upgrade?
A natural diamond upgrade means putting the value of a natural diamond you already own toward a better one — larger, better cut, whiter, cleaner or a different shape — or toward a new setting for the diamond you have. At Morin Jewelers it starts with a free, in-person evaluation in our Southbridge, MA store. We buy loose natural diamonds and diamond jewelry, and that value goes toward the new piece.
Can I upgrade a diamond I bought somewhere else?
Yes. The program is open to any natural diamond, whether you bought it from us, from another jeweler or online, or inherited it. That is the main difference from most chain-store lifetime upgrade policies, which usually accept only diamonds bought from that retailer. Bring it in and we will evaluate it the same way either way.
Do I need the original receipt or grading report?
No. The diamond or the piece itself is the only requirement. A grading report, receipt or previous appraisal is helpful because it documents the stone’s history, but not having one does not stop anything. We examine the diamond directly either way.
How much will my diamond be worth toward an upgrade?
We do not quote a figure before seeing the stone, because it genuinely depends on the stone: cut, color, clarity, carat weight, proportions, condition and the current market all move the number. We evaluate it in front of you and explain what drives its value. Keep in mind that an insurance appraisal states replacement value for a policy, which is a different and usually higher figure than what a diamond represents toward a trade or an upgrade.
Is there a minimum purchase or a time limit?
We do not publish a fixed trade-in percentage, minimum purchase or expiration window. Terms for an individual upgrade are discussed in person once we have seen the diamond, because they depend on the stone you have and on what you are moving to. There is no cost and no obligation to have a diamond evaluated.
Can I upgrade to a larger diamond?
Often, yes. It is the most common reason people start this conversation. How far your current diamond’s value goes depends on that diamond and on the natural diamonds available when you come in. Carat is weight, not size: a well-cut stone can look larger and brighter than a heavier one that is cut deep, which is part of what we show you side by side.
Can I change the shape of my diamond?
Yes. Round, oval, emerald, cushion, princess, radiant, pear, marquise, Asscher and heart shapes are all part of our natural diamond inventory, and we can look for a specific stone through our direct access to the Antwerp diamond exchange. Changing shape usually means changing the setting as well, since most settings are built for one outline.
Can I upgrade just the setting and keep my diamond?
Yes. Resetting a diamond you love in a new mounting is one of the four upgrade paths, and a new setting can make a stone look larger, sit lower or suit the way you live now. If you would rather keep your mounting and upgrade the diamond instead, our bench jeweler will tell you honestly whether it can safely hold the stone you are considering.
Can I keep my original diamond and still upgrade?
Yes. Some people choose a new diamond for their ring and keep the original, reset as a pendant, a pair of earrings or a ring for a son or daughter. Our custom process runs from consultation and sketch to a 3D CAD rendering, then setting and finishing at our own bench in Southbridge, so you see the design before it is made.
Does the program apply to lab-grown diamonds?
The program is built around natural, earth-mined diamonds, which have a long-established trade market that lets us evaluate them toward something new. Lab-grown diamonds are real diamonds, but they are priced very differently. Morin Jewelers carries both, and if you own a lab-grown diamond and are wondering about resetting it or other options, call or text (508) 764-7250.
Does gold or other jewelry count toward my upgrade?
It can. Our gold and diamond buying service purchases loose diamonds and diamond jewelry, and gold jewelry in any condition, for cash or in-store credit toward a new piece. That can include the gold in a mounting you are retiring, earrings you no longer wear or a broken chain in a drawer. Bring it all in and we will evaluate it together.
Can I finance the difference on an upgrade?
Yes. Morin Jewelers offers financing through the Iddeal Credit Card and Affirm, and layaway with a 20% down payment and up to 90 days to pay. Plan lengths and approval are handled by the financing providers, and our financing page has the details.
What should I bring to my evaluation?
Bring the diamond or the piece itself, which is the only requirement. A grading report, receipt or appraisal helps if you have one. You can also bring any gold or diamond jewelry you would like to put toward the upgrade, a photo of what you have in mind, and a government-issued photo ID in case you decide to sell or trade a piece.
Do I need an appointment?
No. Walk-ins are welcome Tuesday through Friday from 9:30am to 5:30pm and Saturday from 9:30am to 3:00pm. If you would like unhurried, dedicated time with a jeweler, especially for a larger upgrade or a custom design, book an appointment online or call (508) 764-7250.
Where can I upgrade a diamond near Worcester, MA?
Morin Jewelers at 409 Main Street in Southbridge is a family-owned jeweler serving Worcester County and Central Massachusetts, including Sturbridge, Charlton, Dudley, Webster, Oxford, Spencer and Auburn, as well as northeastern Connecticut. We evaluate natural diamonds in person, source through direct access to the Antwerp diamond exchange, and set upgrades at our own bench.
Serving Central Massachusetts since 1920
Ready to see what your diamond can become?
Bring your natural diamond to 409 Main Street and sit down with a third-generation jeweler. You will leave understanding what you have and what your options are — whether or not you decide to do anything that day.
Book a Free Evaluation Hours & Directions
- Visit
- 409 Main Street
Southbridge, MA 01550 - Call or text
- (508) 764-7250
Send us a message - Hours
- Mon: Closed
Tue–Fri: 9:30am – 5:30pm
Sat: 9:30am – 3:00pm
Sun: Closed
Your first diamond marks a chapter. Upgrading it doesn’t erase that chapter — it carries it into the next one.
Morin Jewelers welcomes diamond upgrade clients from across Worcester County and Central Massachusetts — Southbridge, Sturbridge, Charlton, Dudley, Webster, Oxford, Brimfield, Spencer and Auburn — and from Putnam and Thompson in northeastern Connecticut. Family-owned for three generations. Learn more about Morin Jewelers.
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