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
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
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
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
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
Radiant Eclipse Open Circle Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Adjustable Closure Detail of Radiant Eclipse Open Circle Lab Grown Diamond Necklace In 18K Yellow Gold
Radiant Eclipse Open Circle Diamond Necklace
$1,290$2,150
Ensemble Brilliant Round Link Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Adjustable Closure Detail of Ensemble Brilliant Round Link Lab Grown Diamond Necklace In 18K Yellow Gold
Ensemble Brilliant Round Link Diamond Necklace
$1,390$2,320
Three Stone Tassel Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Adjustable Closure Detail of Three Stone Tassel Lab Grown Diamond Necklace In 18K Yellow Gold
Three Stone Tassel Diamond Necklace
$650$1,090
Graduated Single Prong Curved Bar Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Adjustable Closure Detail of Graduated Single Prong Curved Bar Lab Grown Diamond Necklace In 18K Yellow Gold
Graduated Single Prong Curved Bar Diamond Necklace
$1,090$1,820
Round Solitaire Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Round Solitaire Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Round Solitaire Diamond Necklace
$890$1,490
Round Halo Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Round Halo Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Round Halo Diamond Necklace
$1,040$1,740
Bezel Solitaire Round Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Bezel Solitaire Round Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Bezel Solitaire Round Diamond Necklace
$990$1,650
Duo Drop Heart and Round Lab Grown Diamond Necklace In 18K Yellow Gold - Lucenjuri Duo Drop Heart and Round Lab Grown Diamond Necklace In 18K Yellow Gold - Front Angle View
Duo Drop Heart and Round Lab Grown Diamond Necklace
$750$1,250
Classic Lab Grown Diamond Open Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Classic Lab Grown Diamond Open Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Classic Lab Grown Diamond Open Cross Pendant Necklace
$850$1,420
Bead Bright Set Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Bead Bright Set Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Bead Bright Set Lab Grown Diamond Cross Pendant Necklace
$850$1,420
Classic Round Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Classic Round Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Classic Round Lab Grown Diamond Cross Pendant Necklace
$750$1,250
Tapered Baguette and Round Lab Grown Diamond Cross Pendant In 18K Yellow Gold - Lucenjuri Tapered Baguette and Round Lab Grown Diamond Cross Pendant In 18K Yellow Gold - Front Angle View
Tapered Baguette and Round Lab Grown Diamond Cross Pendant
$950$1,590
Oval and Round Lab Grown Diamond Cross Necklace In 18K Yellow Gold - Lucenjuri Oval and Round Lab Grown Diamond Cross Necklace In 18K Yellow Gold - Front Angle View
Oval and Round Lab Grown Diamond Cross Necklace
$950$1,590
Lab Grown Diamond Pavé Edge Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Lab Grown Diamond Pavé Edge Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Lab Grown Diamond Pavé Edge Cross Pendant Necklace
$1,550$2,590
Round Lab Grown Diamond Prong Set Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Round Lab Grown Diamond Prong Set Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Lab Grown Diamond Prong Set Cross Pendant Necklace
$1,250$2,090
Round Solitaire Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Round Solitaire Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Solitaire Lab Grown Diamond Cross Pendant Necklace
$900$1,500
Round Lab Grown Diamond Flare Edge Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Round Lab Grown Diamond Flare Edge Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Lab Grown Diamond Flare Edge Cross Pendant Necklace
$1,650$2,750
Round Lab Grown Diamond French Pavé Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Round Lab Grown Diamond French Pavé Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Lab Grown Diamond French Pavé Cross Pendant Necklace
$850$1,420
Round and Asscher Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Round and Asscher Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Round and Asscher Lab Grown Diamond Cross Pendant Necklace
$1,050$1,750
Round Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Round Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Lab Grown Diamond Cross Pendant Necklace
$1,050$1,750
Shared Prong Round Lab Grown Diamond Cross Necklace In 18K Yellow Gold - Lucenjuri Shared Prong Round Lab Grown Diamond Cross Necklace In 18K Yellow Gold - Front Angle View
Shared Prong Round Lab Grown Diamond Cross Necklace
$1,450$2,420
Lab Grown Diamond Round Halo Pavé Twist Pendant Necklace In 18K Yellow Gold - Lucenjuri Lab Grown Diamond Round Halo Pavé Twist Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Halo Pavé Twist Diamond Pendant Necklace
$1,100$1,840
Lab Grown Diamond Round Accented Twist Pendant Necklace In 18K Yellow Gold - Lucenjuri Lab Grown Diamond Round Accented Twist Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Accented Twist Diamond Pendant Necklace
$1,050$1,750
Lab Grown Diamond Round Solitaire Twist Pendant Necklace In 18K Yellow Gold - Lucenjuri Lab Grown Diamond Round Solitaire Twist Pendant Necklace In 18K Yellow Gold - Front Angle View
Round Solitaire Twist Diamond Pendant Necklace
$1,000$1,670
Round Halo Lab Diamond Pavé Bail Pendant in 18K Yellow Gold - Lucenjuri Round Halo Lab Diamond Pavé Bail Pendant in 18K Yellow Gold - 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.
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.

Customer Reviews

Hear why our customers love Lucenjuri

5 Stars
Absolutely Gorgeous! The diamond is perfect! I reached out to the team and had some pretty specific specs. They went through and found the perfect stone for me and allowed me to choose this specific stone. Their customer service was impeccable. It took about 10 days from ordering to delivery. It was delivered in a beautiful box with the certificate. I’m so glad I found this company!
Ursula
September 21, 2026
5 Stars
Everything went super smooth! Emma was very reassuring and extremely helpful. She responded almost immediately to any questions I had. I received the band and everything is perfection ! My husband loves his upgrade. Will definitely be purchasing from this company again !
ALEXZANDRIA
September 17, 2026
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
Anniversary gift
Bought this for our 10 year anniversary and it arrived earlier than expected. My wife loved the sparkle right away, and the quality felt much better than anything we saw locally.
Johnny
September 16, 2026
My Perfect Everyday Necklace!
I think I’ve found my perfect everyday necklace! The quality is exceptional, and this is already my second purchase from Lucenjuri. I’m absolutely in love with it and couldn’t recommend them more!
Navya K.
September 08, 2026
Amazing experience
I couldn't be happier with my wedding set from Lucenjuri! The team went above and beyond to help me design the exact ring I wanted. The consultants were patient, kind, and highly communicative throughout the entire process. When the rings arrived, I was absolutely blown away by the gorgeous details and incredible quality. I'm a customer for life!
Shonna W.
September 07, 2026
Perfect anniversary upgrade
My wife had mentioned a toi et moi ring a few times, so I chose this for our anniversary. The radiant and pear stones look amazing together and feel really special.
Chris L.
September 06, 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
Sleek and beautiful
I wanted the Myra with a different band and the process was easier than I expected. The finished ring has a sleek look and the diamond sparkles beautifully.
Dorine S.
August 23, 2026
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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.