Lab Grown Diamond Cross Necklaces In 18K Yellow Gold

Discover our 18K yellow gold lab grown diamond cross necklaces, pairing a rich, buttery gold profile with a high-impact array of sustainable diamond cuts.

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Solitaire
Bezel
Halo
Toi et Moi
Everyday
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Fashion
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Unique
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18K Yellow Gold
White Gold
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Pendant
Solitaire
Bezel
Halo
Toi et Moi
Everyday
Layered
Fashion
Statement
Unique
18 Items
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
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Diamond Shape
All
Shop by Style
Pendant
Solitaire
Bezel
Halo
Toi et Moi
Everyday
Layered
Fashion
Statement
Unique
Metal
18K Yellow Gold
White Gold
Yellow Gold
Rose Gold
White Gold
Yellow Gold
Platinum
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
Tapered Baguette and Asscher Lab Grown Diamond Cross Pendant In 18K Yellow Gold - Lucenjuri Tapered Baguette and Asscher Lab Grown Diamond Cross Pendant In 18K Yellow Gold - Front Angle View
Tapered Baguette and Asscher Lab Grown Diamond Cross Pendant
$1,150$1,920
Beveled Edge Polished Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Beveled Edge Polished Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Beveled Edge Polished Cross Pendant Necklace
$650$1,090
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
Baguette and Princess Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Baguette and Princess Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Baguette and Princess Lab Grown Diamond Cross Pendant Necklace
$750$1,250
Mixed Radiant Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Lucenjuri Mixed Radiant Lab Grown Diamond Cross Pendant Necklace In 18K Yellow Gold - Front Angle View
Mixed Radiant Lab Grown Diamond Cross Pendant Necklace
$1,350$2,250
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
Marquise and Asscher Lab Grown Diamond Cross Necklace In 18K Yellow Gold - Lucenjuri Marquise and Asscher Lab Grown Diamond Cross Necklace In 18K Yellow Gold - Front Angle View
Marquise and Asscher Lab Grown Diamond Cross Necklace
$850$1,420
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
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.
Step into high-end style with our 18K yellow gold lab grown diamond cross necklaces, offering a saturated precious metal weight that gives a striking design undeniable luxury status.

Customer Reviews

Hear why our customers love Lucenjuri

Stunning Cushion Cut Halo Necklace
I treated myself to this gorgeous cushion cut halo necklace and am so happy I did. I went with a 4.25 carat stone that is beautifully sparkly and garners compliments each time I wear it … and I wear it A LOT. Christine was so helpful in making certain it was perfect … checking with me on the orientation of the stone and assuring that it would arrive in time to wear to a wedding. I’m so pleased with my purchase that I know I will be ordering additional pieces.
Catherine Y.
November 12, 2026
Stunning Diamond Cross Necklace
I purchased this beautiful necklace for my daughter-in-law’s birthday and am so impressed with the beauty and craftsmanship of this piece. It’s the perfect size for her … not too large or flashy but the perfect amount of sparkle. Christine was a huge help in getting this piece ordered and delivered in time for her special day. It’s beautifully packaged too.
Catherine Y.
November 12, 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
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
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
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Lab Diamond Cross Necklaces in 18K Yellow Gold

Experience deep, regal opulence when you buy 18K yellow gold cross necklaces at Lucenjuri. This collection showcases a high-karat gold purity that yields a rich, velvety warmth, framing intricate designs like our tapered baguette and asscher diamond cross in an incredibly high-contrast border of light. The clean, modern lines of our architectural cross frames perfectly temper the intense gold radiance, creating a thoroughly contemporary heirloom.

Looking for a lighter, daily essential weight? Browse our high-tensile 14K Yellow Gold Cross Necklaces collection.

Experience Curated Craftsmanship & Ethical Luxury at Lucenjuri

Crafted with 100% ethical lab diamonds, each statement pendant is precisely designed and crafted to rest perfectly flat against the neckline. Complete with an adjustable solid gold chain, this collection offers an exquisite blend of high-end design, secure diamond protection, and sustainable luxury.

FAQs

Why invest in an 18K yellow gold cross necklace?

For uncompromised, collector-level opulence. 18K yellow gold yields a rich, deep golden radiance that delivers the absolute highest contrast possible against brilliant white diamonds.

Does the higher purity of 18K yellow gold require special care?

Since 75% pure gold is naturally softer, we recommend removing your 18K cross pendant during heavy workouts or hands-on activities to keep the polished gold surface entirely pristine.

How do you style an 18K yellow gold diamond cross?

Let it be the star. Wear it solo against an open collarbone, or layer it with a very thin, understated 18K solid gold chain to let the cross serve as your undisputed style anchor.