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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  • Price, low to high
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  • Date, old to new
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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
Most Loved
Pear Halo Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Pear Halo Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Pear Halo Diamond Pendant Necklace
$1,040$1,740
Most Loved
Oval Solitaire Lab Grown Diamond Necklace In Platinum - Lucenjuri Oval Solitaire Lab Grown Diamond Necklace In Platinum - Front Angle View
Oval Solitaire Diamond Necklace
$890$1,490
Bezel Solitaire Radiant Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Bezel Solitaire Radiant Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Bezel Solitaire Radiant Diamond Pendant Necklace
$990$1,650
Oval Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Oval Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Oval Solitaire Diamond Pendant Necklace
$890$1,490
Most Loved
Toi Et Moi Emerald and Pear Lab Grown Diamond Necklace In Platinum - Lucenjuri Toi Et Moi Emerald and Pear Lab Grown Diamond Necklace In Platinum - Front Angle View
Toi et Moi Emerald and Pear Lab Grown Diamond Necklace
$750$1,250
Emerald Halo Lab Grown Diamond Necklace In Platinum - Lucenjuri Emerald Halo Lab Grown Diamond Necklace In Platinum - Front Angle View
Emerald Halo Diamond Necklace
$1,040$1,740
Most Loved
Bezel Solitaire Oval Lab Grown Diamond Necklace In Platinum - Lucenjuri Bezel Solitaire Oval Lab Grown Diamond Necklace In Platinum - Front Angle View
Bezel Solitaire Oval Diamond Necklace
$990$1,650
Oval Halo Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Oval Halo Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Oval Halo Diamond Pendant Necklace
$1,040$1,740
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
Toi Et Moi Pear and Oval Lab Grown Diamond Necklace In Platinum - Lucenjuri Toi Et Moi Pear and Oval Lab Grown Diamond Necklace In Platinum - Front Angle View
Toi et Moi Pear and Oval Lab Grown Diamond Necklace
$750$1,250
Pear Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Pear Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Pear Solitaire Diamond Pendant Necklace
$890$1,490
Toi Et Moi Pear and Cushion Lab Grown Diamond Necklace In Platinum - Lucenjuri Toi Et Moi Pear and Cushion Lab Grown Diamond Necklace In Platinum - Front Angle View
Toi et Moi Pear and Cushion Lab Grown Diamond Necklace
$850$1,420
Most Loved
Heart Halo Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Heart Halo Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Heart 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
Emerald Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Emerald Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Emerald Solitaire Diamond Pendant Necklace
$890$1,490
Radiant Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Radiant Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Radiant Solitaire Diamond Pendant Necklace
$890$1,490
Cushion Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Cushion Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Cushion Solitaire Diamond Pendant Necklace
$890$1,490
Emerald Halo Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Emerald Halo Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Emerald Halo Diamond Pendant Necklace
$1,040$1,740
Radiant Halo Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Radiant Halo Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Radiant Halo Diamond Pendant Necklace
$1,040$1,740
Cushion Halo Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Cushion Halo Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Cushion Halo Diamond Pendant Necklace
$1,040$1,740
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
Bezel Solitaire Oval Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Bezel Solitaire Oval Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Bezel Solitaire Oval Diamond Pendant Necklace
$990$1,650
Bezel Solitaire Pear Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Bezel Solitaire Pear Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Bezel Solitaire Pear Diamond Pendant Necklace
$990$1,650
Heart Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Heart Solitaire Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Heart Solitaire Diamond Pendant Necklace
$890$1,490
Bezel Solitaire Heart Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Bezel Solitaire Heart Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Bezel Solitaire Heart Diamond Pendant Necklace
$990$1,650
Toi Et Moi Pear and Emerald Lab Grown Diamond Necklace In Platinum - Lucenjuri Toi Et Moi Pear and Emerald Lab Grown Diamond Necklace In Platinum - Front Angle View
Toi et Moi Pear and Emerald Lab Grown Diamond Necklace
$750$1,250
Most Loved
Toi Et Moi Oval and Pear Lab Grown Diamond Necklace In Platinum - Lucenjuri Toi Et Moi Oval and Pear Lab Grown Diamond Necklace In Platinum - Front Angle View
Toi et Moi Oval and Pear Lab Grown Diamond Necklace
$750$1,250
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
Bezel Solitaire Emerald Lab Grown Diamond Pendant Necklace In Platinum - Lucenjuri Bezel Solitaire Emerald Lab Grown Diamond Pendant Necklace In Platinum - Front Angle View
Bezel Solitaire Emerald Diamond Pendant Necklace
$990$1,650
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.
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.
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Customer Reviews

Mar 22, 2025
Great quality, great price
Great quality at an affordable price. My wife loves her new diamond necklace! It’s elegant, sparkly, and perfect for everyday wear. She wears it all the time, and I’m happy with the purchase.
— Eric E.
Feb 20, 2025
Totally Worth It!
This marquise necklace is perfect for any occasion. Worth every penny, and the shipping was fast. Plus, it’s IGI-certified, so I know I’m getting top-quality diamonds! Definitely recommend Lucenjuri!
— Jennifer R.
Nov 26, 2024
Timely delivery, love it!
The online process was so easy, received the product in a timely manner and love my tassel diamond necklace! It’s a great piece to wear on a night out, and I always feel glamorous when I wear it.
— Kimberly S.
Oct 9, 2024
Happy Customer!
This isn’t my first time shopping with Lucenjuri, and once again, they didn’t disappoint! I love how it’s both elegant and subtle—perfect for everyday wear. Plus, as always, the shipping was super fast!
— Sophia P.
May 20, 2024
Perfect gift for our daughter
We gave our daughter a halo-set lab diamond necklace for her 21st birthday. She loved it. It was her first 'real' jewelry and she’s barely taken it off since.
— Richard D.
Jun 18, 2024
Happy mom
Received the pear and emerald pendant necklace from my daughter for Mother’s Day. It’s so thoughtful and elegant. Lucenjuri also has the most stunning packaging!
Hannah W.
Mar 16, 2025
A gift that left her speechless
I bought this pear shaped diamond necklace for my girlfriend, and it was the perfect surprise. She loves simplicity with a little bit of sparkle, and this piece was ideal. The necklace arrived on time and in such beautiful packaging. I highly recommend this as a gift for anyone special!
— Mario
Dec 18, 2024
Perfect gift
The necklace was for my 16-year-old grandniece and she was very pleased. It was a perfect gift, and she hasn’t stopped wearing it. She absolutely loved the design and the sparkle!
— Maria D.
Jan 14, 2025
My kind of jewelry
I was looking for something geometric and minimal, and this curved bar design really stood out to me. It's understated but beautifully detailed up close. The stones are set with precision and the gold bar gives it an architectural vibe that I love.
— Clara
Mar 20, 2025
Simple, elegant, and meaningful
Bought this for my wife as a surprise before our anniversary trip. She doesn’t usually wear much jewelry, but she’s worn this nearly every day since it arrived. The heart shape is subtle, not too girly, and it really sparkles.
— Jonathan H.
Mar 28, 2025
Glamorous without the fuss
I was looking for something I could wear every day but still look good for formal events too. This radiant necklace is perfect! Not too flashy, just the right amount of elegance. The IGI certificate definitely gave me extra confidence in my choice, and it arrived fast!
— Joey W.

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.