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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Toi et Moi
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Pendant
Solitaire
Bezel
Halo
Toi et Moi
Everyday
Layered
Fashion
Statement
Unique
1 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
Oval
Round
Oval
Princess
Marquise
Asscher
Radiant
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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
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
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.
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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.

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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.