Lab Grown Diamond Necklaces In 18K Yellow Gold

Step into the pinnacle of traditional fine jewelry with our 18K yellow gold lab grown diamond necklaces, featuring a highly saturated, buttery glow that frames a colorless stone flawlessly.

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Round Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Round Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Solitaire Diamond Pendant Necklace
$890$1,490
Most Loved
Pear Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Pear Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Pear Halo Diamond Pendant Necklace
$1,040$1,740
Most Loved
Oval Solitaire Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Oval Solitaire Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Oval Solitaire Diamond Necklace
$890$1,490
Bezel Solitaire Radiant Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Bezel Solitaire Radiant Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Bezel Solitaire Radiant Diamond Pendant Necklace
$990$1,650
Oval Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Oval Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Oval Solitaire Diamond Pendant Necklace
$890$1,490
Most Loved
Toi Et Moi Emerald and Pear Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Toi Et Moi Emerald and Pear Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Toi et Moi Emerald and Pear Lab Grown Diamond Necklace
$650$1,090
Emerald Halo Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Emerald Halo Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Emerald Halo Diamond Necklace
$1,040$1,740
Most Loved
Bezel Solitaire Oval Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Bezel Solitaire Oval Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Bezel Solitaire Oval Diamond Necklace
$990$1,650
Oval Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Oval Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Oval Halo Diamond Pendant Necklace
$1,040$1,740
Round Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Round Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Halo Diamond Pendant Necklace
$1,040$1,740
Toi Et Moi Pear and Oval Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Toi Et Moi Pear and Oval Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Toi et Moi Pear and Oval Lab Grown Diamond Necklace
$650$1,090
Pear Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Pear Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Pear Solitaire Diamond Pendant Necklace
$890$1,490
Toi Et Moi Pear and Cushion Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Toi Et Moi Pear and Cushion Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Toi et Moi Pear and Cushion Lab Grown Diamond Necklace
$750$1,250
Most Loved
Heart Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Heart Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Heart Halo Diamond Pendant Necklace
$1,040$1,740
Duo Drop Round and Pear Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Duo Drop Round and Pear Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Duo Drop Round and Pear Lab Grown Diamond Necklace
$750$1,250
Duo Drop Round Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Duo Drop Round Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Duo Drop Round Lab Grown Diamond Necklace
$650$1,090
Duo Drop Round and Oval Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Duo Drop Round and Oval Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Duo Drop Round and Oval Lab Grown Diamond Necklace
$650$1,090
Emerald Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Emerald Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Emerald Solitaire Diamond Pendant Necklace
$890$1,490
Radiant Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Radiant Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Radiant Solitaire Diamond Pendant Necklace
$890$1,490
Cushion Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Cushion Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Cushion Solitaire Diamond Pendant Necklace
$890$1,490
Emerald Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Emerald Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Emerald Halo Diamond Pendant Necklace
$1,040$1,740
Radiant Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Radiant Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Radiant Halo Diamond Pendant Necklace
$1,040$1,740
Cushion Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Cushion Halo Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Cushion Halo Diamond Pendant Necklace
$1,040$1,740
Graduated Curved Bar Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Adjustable Closure Detail of Graduated Curved Bar Lab Grown Diamond Necklace In 18K Yellow Gold
Graduated Curved Bar Diamond Necklace
$650$1,090
Spaced Curved Bar Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Adjustable Closure Detail of Spaced Curved Bar Lab Grown Diamond Necklace In 18K Yellow Gold
Spaced Curved Bar Diamond Necklace
$1,290$2,150
Starry Charm Lab Grown Diamond Dainty Necklace In 18K Yellow Gold - Lucenjuri Adjustable Closure Detail of Starry Charm Lab Grown Diamond Dainty Necklace In 18K Yellow Gold
Starry Charm Diamond Dainty Necklace
$790$1,320
Sparkling Cluster Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Adjustable Closure Detail of Sparkling Cluster Lab Grown Diamond Necklace In 18K Yellow Gold
Sparkling Cluster Diamond Necklace
$1,090$1,820
Bezel Solitaire Round Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Bezel Solitaire Round Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Bezel Solitaire Round Diamond Pendant Necklace
$990$1,650
Bezel Solitaire Oval Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Bezel Solitaire Oval Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Bezel Solitaire Oval Diamond Pendant Necklace
$990$1,650
Bezel Solitaire Pear Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Bezel Solitaire Pear Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Bezel Solitaire Pear Diamond Pendant Necklace
$990$1,650
Heart Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Heart Solitaire Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Heart Solitaire Diamond Pendant Necklace
$890$1,490
Bezel Solitaire Heart Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Bezel Solitaire Heart Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Front Angle View
Bezel Solitaire Heart Diamond Pendant Necklace
$990$1,650
Toi Et Moi Pear and Emerald Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Toi Et Moi Pear and Emerald Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Toi et Moi Pear and Emerald Lab Grown Diamond Necklace
$650$1,090
Most Loved
Toi Et Moi Oval and Pear Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Toi Et Moi Oval and Pear Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Toi et Moi Oval and Pear Lab Grown Diamond Necklace
$650$1,090
Duo Drop Round and Halo Pear Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Duo Drop Round and Halo Pear Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Duo Drop Round and Halo Pear Lab Grown Diamond Necklace
$750$1,250
Bezel Solitaire Emerald Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - Lucenjuri Bezel Solitaire Emerald Lab Grown Diamond Pendant Necklace In 18K Yellow Gold - 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 18K yellow gold lab grown diamond necklace collection or bring your unique vision to life with Lucenjuri’s custom design options, crafted to wrap your style in an undeniably luxurious heritage glow.
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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.

18K Yellow Gold Lab Grown Diamond Necklaces

There is an elite, unmistakable presence that comes with an 18K yellow gold setting. Our collection of 18K yellow gold lab grown diamond necklaces delivers a deeply saturated, buttery gold tone that represents the true pinnacle of traditional luxury. We set our ethical, sustainably grown diamonds into this prestigious, high-purity gold alloy, giving you exceptional wardrobe pieces that offer a substantial physical weight, a classic feel, and a breathtaking contrast of color.

The Luxury Distinction of 18K Yellow Gold Necklace Setting

Choosing an 18K yellow gold lab grown diamond necklace is a beautiful way to prioritize high precious metal purity in your daily jewelry collection. Crafted with 75% pure gold, this alloy boasts a noticeably richer and warmer golden hue than standard 14K options, giving it an incredibly radiant appearance on the skin.

Because of this deep, saturated tone, an 18K yellow gold border acts like an opulent frame that beautifully highlights the icy, colorless center of our GIA and IGI-certified diamonds, making your lab grown diamond pendant necklace look exceptionally striking.

Explore Our 18K Yellow Gold Necklace Layouts

We design our signature 18K yellow gold settings across a few classic silhouettes so you can find a flawless match for your personal look. For a clean, everyday signature, a 1 carat lab grown diamond necklace set in a premium 18K yellow gold prong configuration provides a delicate, warm drop of pure light.

If you want a more dramatic, light-catching presence, stepping up to a 2 carat lab grown diamond necklace with an 18K yellow gold halo layout creates a gorgeous, expansive feel. From the smooth, modern borders of our low-profile bezels to the timeless structure of a lab grown diamond cross necklace, this rich metal brings a high-end, effortless elegance to every diamond cut.

Complete Your Fine Jewelry Collection

An 18K yellow gold lab diamond necklace serves as the perfect, warm anchor for a premium jewelry edit. To keep your look completely seamless and polished, we love matching these rich, high-purity golden tones across your different pieces. You can easily pair your pendant with our responsibly crafted yellow gold lab grown diamond earrings, or layer it alongside a fluid, glittering tennis bracelet.

Shop Your 18K Yellow Gold Lab Diamond Necklaces at Lucenjuri Today

Ready to find the perfect sparkling match for your collection? Explore our premium selection of high-purity yellow gold designs and shop your 18K yellow gold lab diamond necklaces at Lucenjuri today to complete a beautifully synchronized look.

FAQs

Will an 18K yellow gold lab diamond necklace lose its color or fade?

No, solid 18K yellow gold will never tarnish, fade, or lose its rich, buttery color, making it an exceptional choice for lifelong wear. Because the deep golden hue comes from its high concentration of pure gold (75%) running entirely through the solid metal alloy rather than a surface plating, the color is permanent. A quick routine clean at home is all it takes to maintain its original luxury shine.

Does the deep color of 18K yellow gold make a diamond look yellow?

No, an 18K yellow gold setting does not make a diamond look yellow; it actually provides a beautiful contrast that makes a colorless stone stand out. Because the rich, saturated metal prongs or bezel frame the stone, the icy, colorless center of a top-tier D-F graded diamond stands out in sharp, bright relief against the warm backdrop, accentuating its true clarity.

What is the main difference between 14K and 18K yellow gold necklaces?

The main difference is that 18K yellow gold contains a higher percentage of pure gold (75% vs. 58.3%), giving it a richer, more saturated yellow color and a noticeably heavier weight on the skin. While 14K gold offers slightly more scratch resistance due to its alloy blend, 18K gold is highly prized by collectors for its luxury status, purity, and traditional fine jewelry heritage.

Is an 18K yellow gold necklace safe for daily wear?

Yes, an 18K yellow gold necklace is perfectly safe and durable for daily wear, though it is slightly softer than lower-karat options. The 25% alloy blend provides plenty of structural strength to ensure that the delicate prongs holding a halo pendant or a lab diamond tennis necklace remain secure, while its high purity offers excellent durability against everyday elements.

How should we clean an 18K yellow gold lab grown diamond necklace at home?

The best way to clean your 18K yellow gold necklace is a quick soak in warm water with mild dish soap, followed by a light brush with a soft toothbrush. This simple habit quickly lifts away daily oils, lotions, and makeup that collect under the settings, instantly unlocking the maximum light performance of your certified diamonds and the polished sheen of your gold framework.