Northern Gem Supply Coupons – Verified Deals & Offers | October 2026

Save on Hi-Tech Diamond machines, flat laps, lapidary saws with 4 manually verified Northern Gem Supply offers, updated for October 2026. Browse the latest Coupons, working discounts, and exclusive deals, with expired offers removed regularly.

Northern Gem Supply offers 1 coupon codes and 3 deals as of October 2026. Today's top offer: Get 15% Off Using Our Coupon Code Entire Purchase Show Now!. Codes are verified and updated daily.

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15%

OFF

Get 15% Off Using Our Coupon Code Entire Purchase Show Now!

$301.00

Only

Shop 1.77 Ct Opal From Coober Pedy At $301.00

$151.00

Only

Grab 1.76 Ct Opal From Coober Pedy (Double Sided) For $151.00

Free Shipping

Free Shipping on Orders Over $250

Customer Reviews

4.7

Average Rating

Total Reviews

Kevin Lindqvist

★★★★☆

1 month ago

Good quality slab saw blade

I ordered a 10-inch diamond saw blade for my slab saw and it arrived in about a week to Oregon. Packaging was sturdy. The blade cuts really well, very smooth, and I haven't noticed any chipping on my rough. Customer service was helpful when I had a question about coolant compatibility, they responded within a day. Overall a solid experience, I'd consider them again for blades.

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Kevin T.

★★★★★

2 months ago

Smooth transaction, fast shipping

I grabbed some silicon carbide grit and polishing pads. They got here super fast, like 4 days to Montana. Everything was just as described. No issues at all.

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Derek Osei

★★★★★

2 months ago

New rock tumbler is awesome

I finally bought that rock tumbler I've been eyeing, the smaller one, and it's fantastic! It came quickly, took 5 days to reach Denver, and the setup was a breeze. I had my first batch of rough tumbling within an hour of it arriving. The motor is pretty quiet too, which is a big plus. Definitely worth it!

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Northern Gem Supply Community Discussion

Share tips, ask questions & help fellow shoppers save more

Daisy

1 month ago

do they ever do free shipping? My cart is getting kinda heavy with all this grit and polish.

S Sam 1 month ago

They do! If you hit over $200 CAD, shipping is free. Just make sure your total is actually that much after any discounts.

F Faith Marsh 1 month ago

Yeah, I always wait until I have a big enough order to get the free shipping. It adds up fast with consumables.

8 Responses (2)

Paula Z.

1 month ago

Anyone know if they ship to the US? I'm in Arizona and some Canadian stores don't mess with customs stuff.

T Todd Carter 1 month ago

They do! I got some diamond blades shipped to California a few months back. Shipping wasn't super fast but it got here.

B Beth Torres 1 month ago

Yup, I'm pretty sure they ship to the US. Checked their FAQ before and it mentions it.

6 Responses (2)

Cleo

1 month ago

Thinking of picking up one of the lapidary saws. What's their return policy like if it's not what I expected?

C Colin 1 month ago

Returns were easy for me when I bought the wrong grit size. Just make sure it's in new condition and you have the original packaging. For a saw, you'd definitely want to check their specific terms though, as machinery can be different.

B Ben Hughes 1 month ago

I returned a set of pliers once, no issues. I think as long as it's not used, you should be fine.

5 Responses (2)

Priya

2 months ago

Hey, I'm looking at getting a Hi-Tech Diamond machine from here. Are they like, legit authorized dealers or something? Don't wanna get a grey market one.

D Derek 2 months ago

Yeah, they're the real deal. I bought my flat lap from them last year and it came with the full warranty info directly from Hi-Tech Diamond.

S Sophie Kaur 1 month ago

Totally authorized, they're listed on Hi-Tech Diamond's own site as a Canadian retailer if you look it up.

2 Responses (2)

Cody Nguyen

1 month ago

Is there a first-time buyer discount or a newsletter signup bonus or something? Trying to save a few bucks on my first order.

E Emma 1 month ago

I think they sometimes have a newsletter discount pop-up, but it's not always there. Worth checking the site for it.

R Renee 1 month ago

Didn't get one when I signed up but some people mention getting a small percentage off for their first order. Might be seasonal or random.

1 Responses (2)

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