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Plum Diamonds Discount Codes – Verified Deals & Offers | October 2026

Save on custom lab grown engagement rings with 13 manually verified Plum Diamonds offers, updated for October 2026. Browse the latest Discount Codes, working discounts, and exclusive deals, with expired offers removed regularly.

Plum Diamonds offers 0 coupon codes and 13 deals as of October 2026. Today's top offer: Up to 10% Off Oval Cut Lab Diamonds. Codes are verified and updated daily.

$500
Only
Round Cut Lab Diamonds Starting at $500

Find round cut lab diamonds with prices beginning from $500. Selections vary based on carat, color, and clarity.

Up to
10%
OFF
Up to 10% Off Oval Cut Lab Diamonds

Receive up to 10% off on selected oval cut lab diamonds. This offer includes various sizes and clarities.

5%
OFF
Military Appreciation: 5% Off Any Order

Active military personnel and veterans receive 5% off their entire purchase. Verification of military status is required.

$50
Only
Teacher Discount: Save $50 on Purchases

Educators are eligible for a $50 discount on any jewelry item. Valid teacher identification must be presented.

10%
OFF
10% Off Lab Grown Engagement Rings

Plum Diamonds offers 10% off custom lab grown engagement rings. Find your perfect ring at a reduced price.

10%
OFF
Black Friday Sale: 10% Off Selected Items

Our Black Friday event offers 10% off on a range of fine jewelry and loose lab grown diamonds. Check site for specific exclusions.

7%
OFF
Seasonal Offer: 7% Off Engagement Rings

During our seasonal sale, get 7% off on all custom lab grown engagement rings. This promotion is for a limited period.

Free Shipping
Free Shipping on All Engagement Rings

All engagement ring orders qualify for complimentary standard shipping. No minimum purchase is required for this offer.

From $1,200
Pave Engagement Rings From $1,200

Browse pave engagement rings with prices beginning at $1,200. Various setting styles and diamond sizes are available.

8%
OFF
Cyber Monday Deals: 8% Off Fine Jewelry

During Cyber Monday, find 8% off on select fine jewelry pieces. This includes diamond studs and pendants.

$50
Only
Student Discount: $50 Off Your Order

University and college students receive a $50 markdown on their first jewelry acquisition. Student ID is necessary for validation.

5%
OFF
Mother's Day Gift Guide: 5% Off Diamond Pendants

Select diamond pendants are 5% off for Mother's Day. Find the perfect gift for mom in our curated collection.

$50
Only
Healthcare Worker Discount: $50 Off

Healthcare professionals can get $50 off their fine jewelry order. This offer requires proof of healthcare employment.

Customer Reviews

4.5
Average Rating
4
Total Reviews
Neil Beaumont
★★★★☆
2 months ago

Custom ring was nice

I ordered a custom lab grown engagement ring. The process was mostly smooth, but communication felt a bit slow sometimes. The finished ring is lovely, and the craftsmanship is evident. They did a good job on the design, though I wish there were more updates during the crafting phase. Shipping was free, which helped with the overall value, but it took about 3 weeks to arrive. It's a solid choice if you're not in a rush.

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Rachel Okafor
★★★★★
2 months ago

Good oval diamond ring

I bought an oval cut lab diamond engagement ring. It shipped quickly. The ring looks great. Very happy with the purchase.

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Emma
★★★★☆
2 months ago

Worth the investment

I was looking for a good deal on a solitaire engagement ring. I found Plum Diamonds and liked their lab-grown options. The price for the quality of the diamond was excellent compared to other places I checked. I used a first-order discount code I found, which made it even more affordable. Shipping was free, and that always helps. The ring itself is beautiful, and my fiancée loved it. It felt like a smart purchase, getting a high-quality ring without breaking the bank. Good value for what I paid.

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Tom Ito
★★★★★
2 months ago

Beautiful diamond studs!

I recently purchased lab grown diamond earrings, the diamond studs specifically, and they are absolutely gorgeous! They sparkle so much, it's incredible. The website was easy to navigate, and finding exactly what I wanted was simple. The packaging was also very elegant, which made opening them even more special. I'm so pleased with the quality and the price. I will definitely be shopping here again for more jewelry!

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Plum Diamonds Community Discussion

Share tips, ask questions & help fellow shoppers save more

N
Noor
1 month ago

Does Plum Diamonds offer free shipping on their stuff? Or do I have to pay extra for that?

O Omar Walsh 1 month ago
Yep, free shipping. Got my earrings last month and didn't pay extra.
6
P Paula Kaur 1 month ago
Free shipping is standard, at least for US orders. Pretty sure it's always free.
1
5 Responses (2)
D
David G.
2 months ago

I'm looking at Plum Diamonds for a diamond, but also Brilliant Earth. Are Plum Diamonds lab diamonds certified, or do they just say they are?

M Marcus 2 months ago
They are certified, mine came with all the paperwork from IGI. So, legit.
4
B Beth 1 month ago
Every lab diamond I looked at on their site had certification info listed. They're definitely not just 'saying' it.
2
4 Responses (2)
S
Shane Foster
2 months ago

Does anyone know if Plum Diamonds does a discount for first-time buyers? Like a newsletter signup thing?

P Phil H. 2 months ago
I got $50 off my first order when I signed up for their emails. Worth checking if that's still active.
4
M Marcus Nguyen 2 months ago
Yeah, I think they usually have some kind of first purchase discount. Mine was 10% on a specific item a while back.
2
4 Responses (2)
M
Marcus Ito
1 month ago

I'm a healthcare worker. Does Plum Diamonds offer any kind of discount for that?

P Paula 1 month ago
Yeah, they do! I got a pretty decent discount for being a healthcare worker last year. Check their site, it's usually listed under their special offers.
4
D Dan A. 1 month ago
I think they have one. My friend used a teacher discount there, so I'd imagine healthcare is similar. Worth asking their customer service.
2
3 Responses (2)
D
Derek
1 month ago

Hey guys, thinking about getting a custom engagement ring from Plum Diamonds. Anyone know how long that usually takes from start to finish?

S Steve Lindqvist 1 month ago
Mine took about 3-4 weeks from when I finalized the design to when it shipped. They were pretty good about keeping me updated.
1
P Paula N. 1 month ago
yeah, mine was similar, maybe a little faster. depends on how many changes you want I guess. but overall, reasonable.
0
1 Responses (2)
N
Nick Osei
1 month ago

wondering about returns from Plum Diamonds. Is it a huge hassle if it doesn't work out? Or pretty straightforward?

O Omar 1 month ago
I returned a necklace that wasn't quite right, and it was super easy. Just follow their instructions on the website.
3
N Noor 1 month ago
yeah returns were easy, did it last month for a ring I ended up exchanging for a different size.
1
0 Responses (2)
J
June Ito
1 month ago

hey, plum diamonds vs clean origin? anyone have experience with both, especially for engagement rings? curious about quality and price difference.

I Ivy Silva 1 month ago
I looked at both for my fiancée's ring. Plum Diamonds felt a bit more custom and unique in their settings, while Clean Origin had more standard options. Prices were competitive, but PD's designs felt more elevated.
1
T Tom Reyes 1 month ago
Clean Origin has some good basics, but I went with Plum Diamonds because I liked their ethical sourcing transparency and the option for recycled gold. Quality wise, both are good with lab diamonds, but PD's craftsmanship felt a step up.
5
0 Responses (2)
O
Omar Silva
1 month ago

Can you use more than one coupon code at Plum Diamonds? Like, if I have a referral code and then some other sale code?

A Amber Silva 1 month ago
I tried to stack a newsletter code with a Black Friday deal once and it didn't work. I think it's usually one per order.
4
M Marcus Marsh 1 month ago
Nah, pretty sure you can only use one coupon at a time. Most places are like that.
3
0 Responses (2)

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