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03 July, 2026
Diamonds are not like the rest of your stock. One certified stone can cost you more than a full tray of silver, and the customer buying it will want the four Cs spelled out, the cut, the color, the clarity, the carat, with a GIA or IGI report in the box.
That report is the bit that protects you. Sell a stone with no grading behind it, or a lab-grown stone passed off as mined, and it is you, the customer, who comes back to you once they get it valued.
Canada has its own card to play as well. The stones come out of the Ekati and Diavik mines up in the Northwest Territories, and a fair few of your customers will ask for that Canadian origin by name.
So, are you a jeweller, an online seller, or a wholesaler after stones you can stand behind? If you are not sure who actually keeps that promise, this one is here to help.
Here we have pulled together the top 20 wholesale diamond jewelry suppliers in Canada worth your trust.
So, let's get started.
1. JewelPin
JewelPin comes in diamonds from the gold side. The white stones go in as accents on their 14k pieces, not sold loose. They are RJC certified, too.
So the diamonds and the gold both carry proper sourcing behind them. That is the sort of thing a Canadian buyer asks about now. The custom work is where they earn the top spot here. You send the design, and they make the diamond-set piece in their own unit. Additionally, there is no middleman skimming a cut on the way.
Q Diamond is a Toronto wholesaler. The proper dealer ends the trade, not a brand. They run buying offices abroad and their own network of cutters. S
You can get a stone sourced to the grade and spec you set. Also, the certified Canadian stones, the ethically mined ones, are in there too. It is the dealer to ring when you want loose stones at trade prices to set yourself.
Crossworks is your Canadian-origin pick, sat under HRA with cutting floors in Yellowknife and Sudbury.
What you get is a stone that never really leaves Canada, mined, cut, and graded all in the one country, the origin tracked end to end. Canadian rough is pretty much all they handle.
So this is your answer when a customer wants a stone they know is homegrown, no question over where it came from.
Embee is a small family-owned cutting house in Prince Albert, Saskatchewan, going since 1998.
Their own cut is the Sirius Star, done by a cutter called Mike Botha with extra facets worked into it. You will not find it everywhere; they only sell through jewellers they have signed up.
So go to Embee when you want a named Canadian cut your shop can own, something the place down the road is not carrying.
P.T. Diamonds is a Toronto loose-stone dealer, going over 20 years now. The thing worth knowing is they handle the grading and the appraising in-house as well, not just the selling. So you can get a stone and the paperwork that backs it from the one place. Also, that saves you from sending it off to a third party every time a customer wants it valued.
Linara is the lab-grown wholesaler here, Canadian, and dealing in created stones only. The stones come certified, sourced straight off the growers, so they cost a fair bit less than a mined one of the same size. To the eye, it is the same stone too, the same four Cs. One thing I have to be straight about, though, lab-grown does not hold its value the way a mined one does. So it is the option to go for if your customer wants the look, less so if they are after something that holds its price.
Diamonds Direct is a Canadian one, and the whole idea is right there in the name. They cut the middleman and buy straight off the cutters, so you are not paying the usual retail markup on top. You get natural and lab-grown both, loose, and conflict-free. They sell online and out of a few Ontario showrooms, too. If you ask me, direct buying is the only real reason to bother with them, and it is what keeps the price down.
Samuel Kleinberg is an old Toronto name, going since 1968, and they sell wholesale by appointment. They buy their stones straight off the sight-holders, so the middleman is out of it here, too. You can get natural or lab, all properly graded, with a custom service on top. Honestly, this one suits you if you know your stuff and want to sit down with someone, not just click add to cart.
Rohin grows its own diamonds in a lab in Ontario, using the CVD process. So these are not pulled out of the ground; they are built up over a few weeks in a machine.
The stone you end up with has the same makeup as a mined one, just newer and cheaper. If lab-grown is moving into your shop, the fact that it is grown right here in Canada is a handy line to give the customer.
Temple and Grace are worth knowing if you want coloured gemstones sitting next to your diamonds, because they carry both. The whole thing runs online, so you are picking loose stones off a screen.
They handpick what goes up, natural and lab, all of it graded. For a buyer chasing diamonds and gemstones from one place, that mix is the real draw.
Laferrière and Brixi is a Montreal diamantaire, going on 20 years now. The thing worth knowing is they cut the stones themselves, so they read a diamond from the rough up rather than off a price list. They also handle the estate side, the appraising, and the recutting of old pieces. So if a customer ever walks in with an inherited ring, this is who you would turn to.
Luxury Diamonds is a Vancouver one, run by a founder who started out as a wholesaler across western Canada. So the dealer instinct runs right through it, the stones hand-picked and the prices kept close to trade. They lean more custom these days, but you are still buying off someone who knows the supply side. Also, being out west, they are handy if the Toronto trade is not near you. That wholesale background is really the draw with them.
Diamond Exchange is a Toronto outfit, online since 2002. The pull here is the search tool, you can sit and sort through thousands of stones yourself, natural or lab, and filter right down to the grade and budget you want.
So you are doing the picking, not waiting on someone to send you three options. If you ask me, that is handy when you know your four Cs and just want to get on with it.
Kimberfire is a Toronto studio, more of the guided end of things. They sit you down, virtually or in person, and walk you through the wholesale diamonds while you build a ring.
So it suits a buyer who wants a bit of hand-holding, someone talking through the trade-offs as they go. That guidance is really what you are paying for with them.
Fair Trade Jewellery Co is a Toronto one, and the ethics side is the whole point of them. They were early into Fairtrade gold here, and the diamonds are traceable, Canadian or lab, nothing with a murky past behind it. So you can tell a customer exactly where the gold and the stone came from. If your shop sells on ethics, this is the supplier that backs it up properly.
Diamonds Factory is an online one with a Toronto showroom. Most of what they do is made to order, you pick the stone and the setting, and they hand-finish the ring, usually four to six weeks out. So you are not buying off a shelf; the ring gets built around what the customer actually wants. That made-to-order side is the reason to use them.
Ecksand is a Montreal one, been going since 2009. They do the whole thing in their own workshop, so the design and the making happen under the one roof, nothing farmed out. It sits at the fancier end, though, and the prices follow. Honestly, you go there for the look and the in-house quality, not to keep the cost down.
Maple Leaf Diamonds is a Canadian brand, sold through independent jewellers in Winnipeg. Every stone has a little maple leaf and a serial number etched on it, so a customer can see the Canadian origin for themselves. The name does a lot of the selling, plenty of buyers already know it. Just be straight that you pay for that brand, it is not the cheap option.
Spence Diamonds is a Canadian chain, started in Vancouver back in 1978. They were one of the first here to put lab-grown and mined stones side by side in the shop, so a customer can weigh up both before they decide. The rings are made in Canada, too. So it suits you if you want the customer to do the comparing in person, not just take your word on it.
Birks is the old name on this list, a Montreal house going right back to 1879. They design and make their own jewellery in their own workshops, so this is a proper manufacturer with real history behind it. The name carries serious weight in Canada, the kind of customer trust without you having to sell it. Mind you, that heritage comes at a heritage price, so it is the premium end of the list.
So, these are our recommendations for the best 20 wholesale diamond jewelry suppliers in Canada you can work with. The list has included a trusted source that offers big cutters and wholesalers at one end, the lab-grown crowd in the middle, and a few old premium names like Birks up the top. Where you start comes down to your shop and what your margin can take. If it is diamond-set gold made to your own design, with the sourcing certified, JewelPin is where I would begin. Have a look through their collection and start a conversation.
