Lab Grown Diamond Necklaces In Platinum

Discover absolute permanence with our platinum lab grown diamond engagement necklaces, boasting a naturally colorless, heavy-weight setting that offers unmatched diamond security.

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Round Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Round Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Round Solitaire Diamond Pendant Necklace
$890$1,490
Round Halo Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Round Halo Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Round Halo Diamond Pendant Necklace
$1,040$1,740
Duo Drop Round and Pear Lab Grown Diamond Necklace In Platinum - Lucenjuri Duo Drop Round and Pear Lab Grown Diamond Necklace In Platinum - Front Angle View
Duo Drop Round and Pear Lab Grown Diamond Necklace
$850$1,420
Duo Drop Round Lab Grown Diamond Necklace In Platinum - Lucenjuri Duo Drop Round Lab Grown Diamond Necklace In Platinum - Front Angle View
Duo Drop Round Lab Grown Diamond Necklace
$750$1,250
Duo Drop Round and Oval Lab Grown Diamond Necklace In Platinum - Lucenjuri Duo Drop Round and Oval Lab Grown Diamond Necklace In Platinum - Front Angle View
Duo Drop Round and Oval Lab Grown Diamond Necklace
$750$1,250
Graduated Curved Bar Lab Grown Diamond Necklace In Platinum - Lucenjuri Adjustable Closure Detail of Graduated Curved Bar Lab Grown Diamond Necklace In Platinum
Graduated Curved Bar Diamond Necklace
$750$1,250
Spaced Curved Bar Lab Grown Diamond Necklace In Platinum - Lucenjuri Adjustable Closure Detail of Spaced Curved Bar Lab Grown Diamond Necklace In Platinum
Spaced Curved Bar Diamond Necklace
$1,390$2,320
Starry Charm Lab Grown Diamond Dainty Necklace In Platinum - Lucenjuri Adjustable Closure Detail of Starry Charm Lab Grown Diamond Dainty Necklace In Platinum
Starry Charm Diamond Dainty Necklace
$890$1,490
Sparkling Cluster Lab Grown Diamond Necklace In Platinum - Lucenjuri Adjustable Closure Detail of Sparkling Cluster Lab Grown Diamond Necklace In Platinum
Sparkling Cluster Diamond Necklace
$1,190$1,990
Bezel Solitaire Round Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Bezel Solitaire Round Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Bezel Solitaire Round Diamond Pendant Necklace
$990$1,650
Duo Drop Round and Halo Pear Lab Grown Diamond Necklace In Platinum - Lucenjuri Duo Drop Round and Halo Pear Lab Grown Diamond Necklace In Platinum - Front Angle View
Duo Drop Round and Halo Pear Lab Grown Diamond Necklace
$850$1,420
Radiant Eclipse Open Circle Lab Grown Diamond Necklace In Platinum - Lucenjuri Adjustable Closure Detail of Radiant Eclipse Open Circle Lab Grown Diamond Necklace In Platinum
Radiant Eclipse Open Circle Diamond Necklace
$1,390$2,320
Ensemble Brilliant Round Link Lab Grown Diamond Necklace In Platinum - Lucenjuri Adjustable Closure Detail of Ensemble Brilliant Round Link Lab Grown Diamond Necklace In Platinum
Ensemble Brilliant Round Link Diamond Necklace
$1,490$2,490
Three Stone Tassel Lab Grown Diamond Necklace In Platinum - Lucenjuri Adjustable Closure Detail of Three Stone Tassel Lab Grown Diamond Necklace In Platinum
Three Stone Tassel Diamond Necklace
$750$1,250
Graduated Single Prong Curved Bar Lab Grown Diamond Necklace In Platinum - Lucenjuri Adjustable Closure Detail of Graduated Single Prong Curved Bar Lab Grown Diamond Necklace In Platinum
Graduated Single Prong Curved Bar Diamond Necklace
$1,190$1,990
Round Solitaire Lab Grown Diamond Necklace In Platinum - Lucenjuri Round Solitaire Lab Grown Diamond Necklace In Platinum - Front Angle View
Round Solitaire Diamond Necklace
$890$1,490
Round Halo Lab Grown Diamond Necklace In Platinum - Lucenjuri Round Halo Lab Grown Diamond Necklace In Platinum - Front Angle View
Round Halo Diamond Necklace
$1,040$1,740
Bezel Solitaire Round Lab Grown Diamond Necklace In Platinum - Lucenjuri Bezel Solitaire Round Lab Grown Diamond Necklace In Platinum - Front Angle View
Bezel Solitaire Round Diamond Necklace
$990$1,650
Duo Drop Heart and Round Lab Grown Diamond Necklace In Platinum - Lucenjuri Duo Drop Heart and Round Lab Grown Diamond Necklace In Platinum - Front Angle View
Duo Drop Heart and Round Lab Grown Diamond Necklace
$850$1,420
Classic Lab Grown Diamond Open Cross Pendant Necklace In Platinum - Lucenjuri Classic Lab Grown Diamond Open Cross Pendant Necklace In Platinum - Front Angle View
Classic Lab Grown Diamond Open Cross Pendant Necklace
$950$1,590
Bead Bright Set Lab Grown Diamond Cross Pendant Necklace In Platinum - Lucenjuri Bead Bright Set Lab Grown Diamond Cross Pendant Necklace In Platinum - Front Angle View
Bead Bright Set Lab Grown Diamond Cross Pendant Necklace
$950$1,590
Classic Round Lab Grown Diamond Cross Pendant Necklace In Platinum - Lucenjuri Classic Round Lab Grown Diamond Cross Pendant Necklace In Platinum - Front Angle View
Classic Round Lab Grown Diamond Cross Pendant Necklace
$850$1,420
Tapered Baguette and Round Lab Grown Diamond Cross Pendant In Platinum - Lucenjuri Tapered Baguette and Round Lab Grown Diamond Cross Pendant In Platinum - Front Angle View
Tapered Baguette and Round Lab Grown Diamond Cross Pendant
$1,050$1,750
Oval and Round Lab Grown Diamond Cross Necklace In Platinum - Lucenjuri Oval and Round Lab Grown Diamond Cross Necklace In Platinum - Front Angle View
Oval and Round Lab Grown Diamond Cross Necklace
$1,050$1,750
Lab Grown Diamond Pavé Edge Cross Pendant Necklace In Platinum - Lucenjuri Lab Grown Diamond Pavé Edge Cross Pendant Necklace In Platinum - Front Angle View
Lab Grown Diamond Pavé Edge Cross Pendant Necklace
$1,650$2,750
Round Lab Grown Diamond Prong Set Cross Pendant Necklace In Platinum - Lucenjuri Round Lab Grown Diamond Prong Set Cross Pendant Necklace In Platinum - Front Angle View
Round Lab Grown Diamond Prong Set Cross Pendant Necklace
$1,350$2,250
Round Solitaire Lab Grown Diamond Cross Pendant Necklace In Platinum - Lucenjuri Round Solitaire Lab Grown Diamond Cross Pendant Necklace In Platinum - Front Angle View
Round Solitaire Lab Grown Diamond Cross Pendant Necklace
$1,000$1,670
Round Lab Grown Diamond Flare Edge Cross Pendant Necklace In Platinum - Lucenjuri Round Lab Grown Diamond Flare Edge Cross Pendant Necklace In Platinum - Front Angle View
Round Lab Grown Diamond Flare Edge Cross Pendant Necklace
$1,750$2,920
Round Lab Grown Diamond French Pavé Cross Pendant Necklace In Platinum - Lucenjuri Round Lab Grown Diamond French Pavé Cross Pendant Necklace In Platinum - Front Angle View
Round Lab Grown Diamond French Pavé Cross Pendant Necklace
$950$1,590
Round and Asscher Lab Grown Diamond Cross Pendant Necklace In Platinum - Lucenjuri Round and Asscher Lab Grown Diamond Cross Pendant Necklace In Platinum - Front Angle View
Round and Asscher Lab Grown Diamond Cross Pendant Necklace
$1,150$1,920
Round Lab Grown Diamond Cross Pendant Necklace In Platinum - Lucenjuri Round Lab Grown Diamond Cross Pendant Necklace In Platinum - Front Angle View
Round Lab Grown Diamond Cross Pendant Necklace
$1,150$1,920
Shared Prong Round Lab Grown Diamond Cross Necklace In Platinum - Lucenjuri Shared Prong Round Lab Grown Diamond Cross Necklace In Platinum - Front Angle View
Shared Prong Round Lab Grown Diamond Cross Necklace
$1,550$2,590
Lab Grown Diamond Round Halo Pavé Twist Pendant Necklace In Platinum - Lucenjuri Lab Grown Diamond Round Halo Pavé Twist Pendant Necklace In Platinum - Front Angle View
Round Halo Pavé Twist Diamond Pendant Necklace
$1,100$1,840
Lab Grown Diamond Round Accented Twist Pendant Necklace In Platinum - Lucenjuri Lab Grown Diamond Round Accented Twist Pendant Necklace In Platinum - Front Angle View
Round Accented Twist Diamond Pendant Necklace
$1,050$1,750
Lab Grown Diamond Round Solitaire Twist Pendant Necklace In Platinum - Lucenjuri Lab Grown Diamond Round Solitaire Twist Pendant Necklace In Platinum - Front Angle View
Round Solitaire Twist Diamond Pendant Necklace
$1,000$1,670
Round Halo Lab Diamond Pavé Bail Pendant in Platinum - Lucenjuri Round Halo Lab Diamond Pavé Bail Pendant in Platinum - Front Angle View
Round Halo Lab Diamond Pendant Necklace with Accented Bail
$1,090$1,820
Design Your Own Necklace
Design Your Own
Whether you're marking a special occasion or elevating everyday elegance, our necklaces can be fully customized to make it as special as the moments you wear it for.
Layer It Up
With customizable options and a variety of styles, mix and match to create a look that's uniquely yours, perfect for any occasion.
Elegance Around Your Neck
Discover our stunning range of necklaces designed to complement any occasion.
5 Stars
This necklace and company are wonderful! I asked for a custom length made and it was perfect! The stones are clean and sparkly! Love them! Very quick shipping. Christine in customer service is the best; great communication. I would trust no other company for lab created diamonds
Tracy
September 17, 2026
Absolutely Stunning Necklace & Exceptional Service! 💛✨
I’m absolutely in love with my Starry Charm necklace! 😍 It’s even more beautiful in person, and the sparkle is incredible. I ordered the 0.50ct version and was so pleasantly surprised that mine totaled 0.63ct! I upgraded it to 18k gold and the 18K yellow gold is absolutely gorgeous too. A special thank you to Emma, who made the entire experience wonderful. She was incredibly kind, attentive, and helpful throughout the whole process. I’m so happy with both the necklace and the amazing customer service that I’ve already ordered another piece! 💛✨
Navya K.
September 04, 2026
super sparkly!
Among all the jewelry companies I contacted while looking for a necklace, Lucenjuri stood out for its exceptional and sincere customer service. While many other companies filled my inbox with promotional and high-pressure sales emails after I inquired or registered, your team never did that at all.When the necklace arrived, I was absolutely amazed—both the diamond and the chain are truly, incredibly sparkly! I previously ordered a lab-grown diamond necklace from a well-known company with a store in Beverly Hills, but it didn't impress me at all, and I ended up returning it. Buying jewelry online made me feel a bit anxious at first, but any doubts I had vanished the moment I opened your package.Thank you so much, Nicole and Christine, for your kind and thoughtful replies. You made my experience truly unforgettable.
Maiko
September 03, 2026
Great experience - Please do not hesitate to buy!!
I was skeptical to place an order for an expensive piece of jewelry from an online company - especially one that I had never heard of before - but let me just say, working with Lucenjuri and our lovely consultant, Christine was a pleasure from beginning to end. She guided me through stone selection and kept me informed through the entire process from fabrication to shipping to follow up. The necklace was even better than expected and the price was better than competitors who were selling inferior stones. They earned my trust and I would purchase from them again without a doubt.
Leslie K.
July 28, 2026
Sparkles so much!
I ordered the sparkling cluster diamond necklace and can’t believe how much it sparkles. For me, it is a statement piece, good for special occasions. Definitely a wonderful gift for yourself or a loved one.
Angela D.
June 10, 2026
Top notch
I purchased the 1 Carat Bezel Solitaire Round Diamond Necklace in Platinum for myself. I chose platinum because I am sensitive to all other metals and because its very strong. I didn't know the company before this purchase and was really impressed with the level of communication during the process of making the necklace, all the way up to shipping. When I finally received the item, it was stunning. The bezel setting makes the diamond appear bigger in my opinion, so it is very impressive. I also bought a set of diamond stud earrings and the combined packaging both items were sent in was really beautiful and premium. If you are hesitant, just do it!
Patricia S.
May 22, 2026
Very positive experience with Lucenjuri
My necklace arrived on time, progress was well communicated throughout the entire process and the end product was perfect! Great quality and beautiful diamonds! I have already referred someone to Lucenjuri for an engagement ring. With declining customer service everywhere - my experience with Lucenjuri was above and beyond!
Kaitlin H.
May 12, 2026
3ct, toi et moi emerald and pear necklace
The diamonds are absolutely stunning and with 3ct the chain was automatically upgraded to 1.1mm thickness. Amazing customer service communication as well - thank you Christine - and fast delivery. IGI certificates are included.
Ann
May 11, 2026
Rose gold bezel set- excellence in a box
I searched in stores and online for the perfect piece- rose gold lab grown bezel set pear shaped pendant. This is what I’ve searched high and low for. I was a little worried it wouldn’t arrive quickly but I received it a week ahead of schedule. Very happy with my purchase!
Helen S.
April 27, 2026
Exceeded my expectations!
My husband gifted me an emerald diamond pendant necklace for our 15 year anniversary. It's a beautiful necklace that I wear almost everyday now. Received many compliments on it within just days of wearing it. I will definitely be ordering more jewelry from Lucenjuri! Highly recommended.
Tina Z.
April 08, 2026
Explore our curated platinum lab grown diamond necklace collection or bring your unique vision to life with Lucenjuri’s custom design options, crafted to secure your style with a resilient, permanent brilliance.

Customer Reviews

Hear why our customers love Lucenjuri

5 Stars
This necklace and company are wonderful! I asked for a custom length made and it was perfect! The stones are clean and sparkly! Love them! Very quick shipping. Christine in customer service is the best; great communication. I would trust no other company for lab created diamonds
Tracy
September 17, 2026
Absolutely Stunning Necklace & Exceptional Service! 💛✨
I’m absolutely in love with my Starry Charm necklace! 😍 It’s even more beautiful in person, and the sparkle is incredible. I ordered the 0.50ct version and was so pleasantly surprised that mine totaled 0.63ct! I upgraded it to 18k gold and the 18K yellow gold is absolutely gorgeous too. A special thank you to Emma, who made the entire experience wonderful. She was incredibly kind, attentive, and helpful throughout the whole process. I’m so happy with both the necklace and the amazing customer service that I’ve already ordered another piece! 💛✨
Navya K.
September 04, 2026
super sparkly!
Among all the jewelry companies I contacted while looking for a necklace, Lucenjuri stood out for its exceptional and sincere customer service. While many other companies filled my inbox with promotional and high-pressure sales emails after I inquired or registered, your team never did that at all.When the necklace arrived, I was absolutely amazed—both the diamond and the chain are truly, incredibly sparkly! I previously ordered a lab-grown diamond necklace from a well-known company with a store in Beverly Hills, but it didn't impress me at all, and I ended up returning it. Buying jewelry online made me feel a bit anxious at first, but any doubts I had vanished the moment I opened your package.Thank you so much, Nicole and Christine, for your kind and thoughtful replies. You made my experience truly unforgettable.
Maiko
September 03, 2026
Great experience - Please do not hesitate to buy!!
I was skeptical to place an order for an expensive piece of jewelry from an online company - especially one that I had never heard of before - but let me just say, working with Lucenjuri and our lovely consultant, Christine was a pleasure from beginning to end. She guided me through stone selection and kept me informed through the entire process from fabrication to shipping to follow up. The necklace was even better than expected and the price was better than competitors who were selling inferior stones. They earned my trust and I would purchase from them again without a doubt.
Leslie K.
July 28, 2026
Sparkles so much!
I ordered the sparkling cluster diamond necklace and can’t believe how much it sparkles. For me, it is a statement piece, good for special occasions. Definitely a wonderful gift for yourself or a loved one.
Angela D.
June 10, 2026
Top notch
I purchased the 1 Carat Bezel Solitaire Round Diamond Necklace in Platinum for myself. I chose platinum because I am sensitive to all other metals and because its very strong. I didn't know the company before this purchase and was really impressed with the level of communication during the process of making the necklace, all the way up to shipping. When I finally received the item, it was stunning. The bezel setting makes the diamond appear bigger in my opinion, so it is very impressive. I also bought a set of diamond stud earrings and the combined packaging both items were sent in was really beautiful and premium. If you are hesitant, just do it!
Patricia S.
May 22, 2026
Very positive experience with Lucenjuri
My necklace arrived on time, progress was well communicated throughout the entire process and the end product was perfect! Great quality and beautiful diamonds! I have already referred someone to Lucenjuri for an engagement ring. With declining customer service everywhere - my experience with Lucenjuri was above and beyond!
Kaitlin H.
May 12, 2026
3ct, toi et moi emerald and pear necklace
The diamonds are absolutely stunning and with 3ct the chain was automatically upgraded to 1.1mm thickness. Amazing customer service communication as well - thank you Christine - and fast delivery. IGI certificates are included.
Ann
May 11, 2026
Rose gold bezel set- excellence in a box
I searched in stores and online for the perfect piece- rose gold lab grown bezel set pear shaped pendant. This is what I’ve searched high and low for. I was a little worried it wouldn’t arrive quickly but I received it a week ahead of schedule. Very happy with my purchase!
Helen S.
April 27, 2026
Exceeded my expectations!
My husband gifted me an emerald diamond pendant necklace for our 15 year anniversary. It's a beautiful necklace that I wear almost everyday now. Received many compliments on it within just days of wearing it. I will definitely be ordering more jewelry from Lucenjuri! Highly recommended.
Tina Z.
April 08, 2026
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Platinum Lab Grown Diamond Necklaces

There is an incredible sense of permanence that comes with a platinum setting. Our collection of platinum lab grown diamond necklaces delivers a dense, substantial weight and a natural, icy white brilliance that represents the absolute peak of fine jewelry craftsmanship. We set our ethical, sustainably grown diamonds straight into this premium noble metal, giving you uncompromised wardrobe pieces that offer lifelong durability, a rich physical presence, and a pure white shine that will never fade.

The Unmatched Strength of a Platinum Frame

Choosing a platinum lab grown diamond necklace is the ultimate way to prioritize long-term security and pure metal luxury. Platinum is naturally white and completely hypoallergenic, making it the perfect precious metal choice for anyone with sensitive skin.

Because platinum is an incredibly dense, malleable metal, it doesn't wear away or lose volume over time like gold alloys can. Instead, a platinum setting provides a highly secure, permanent hold that grips the delicate facets of our GIA and IGI-certified stones with maximum strength, ensuring your lab grown diamond pendant necklace stays safe for generations.

Explore Our Platinum Necklace Layouts

We design our signature platinum settings across a few classic silhouettes so you can find a flawless match for your personal aesthetic. For a clean, everyday signature, a 1 carat lab grown diamond necklace set in a bright platinum prong configuration provides a delicate, floating drop of pure light.

If you are looking for a more commanding, light-catching presence, stepping up to a 2 carat lab grown diamond necklace with a crisp platinum-set halo layout creates a gorgeous, expansive feel. From the smooth, modern borders of our low-profile bezels to the classic structure of a lab grown diamond cross necklace, this naturally white metal brings an elite, contemporary elegance to every single diamond cut.

Complete Your Fine Jewelry Collection

A platinum lab diamond necklace serves as the ultimate, brilliant anchor for a luxury jewelry edit. To keep your aesthetic perfectly sharp and seamless, we love matching these naturally bright white tones across your entire look. You can easily pair your pendant with our responsibly crafted platinum lab grown diamond earrings, or layer it alongside a fluid, high-prestige tennis bracelet.

Shop Your Platinum Lab Diamond Necklaces at Lucenjuri Today

Ready to find the perfect sparkling match for your collection? Explore our premium selection of naturally white, hypoallergenic designs and shop your platinum lab diamond necklaces at Lucenjuri today to complete a beautifully synchronized look.

FAQs

Will a platinum lab diamond necklace ever change color or turn yellow?

No, platinum is naturally white and will never fade, tarnish, or change color over time. Unlike white gold, which relies on a surface rhodium plating to hide its natural yellow undertone, platinum's icy white luster runs entirely through the solid metal composition. This means your necklace will never require replating to maintain its bright modern shine.

What is the difference between white gold and platinum necklaces?

The main difference is that platinum is naturally white, significantly heavier, and more durable than white gold, which is a lightweight alloy that requires occasional replating. While white gold offers a beautiful, highly reflective finish at a lower starting investment, platinum is highly prized by collectors for its pure metal weight, hypoallergenic properties, and lifelong prong security.

What is the signature patina that develops on platinum jewelry?

Over time, daily wear will cause platinum to develop a soft, satin-like finish known as a patina, which many fine jewelry lovers highly prize. This happens because daily scratches don't scrape the metal away; they simply displace it across the surface. If you prefer a crisp, mirror-like modern shine, a quick professional buffing instantly restores its original polished sheen.

Is a platinum necklace safe for highly sensitive skin?

Yes, platinum is completely hypoallergenic because it is used in a highly pure state (typically 95% pure), making it entirely safe for sensitive skin. It contains zero nickel or common base-metal allergens found in gold alloys, providing an incredibly clean, comfortable, and irritation-free feel against the skin for daily wear.

How should we clean a platinum lab grown diamond necklace at home?

The best way to clean your platinum necklace is a brief soak in warm water with mild dish soap, followed by a gentle scrub with a soft toothbrush. This simple styling habit quickly lifts away daily oils, makeup, and lotions that block the light channels under the settings, instantly unlocking the maximum fire of your certified diamonds and the bright luster of your platinum framework.