Lab Grown Diamond Cross Necklaces In 18K White Gold

Discover our 18K white gold lab grown diamond cross necklaces, where a high-purity premium setting elevates an intricate array of brilliant diamond shapes.

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Solitaire
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Halo
Toi et Moi
Everyday
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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
Round
Oval
Princess
Marquise
Asscher
Radiant
Shop by Style
Pendant
Solitaire
Bezel
Halo
Toi et Moi
Everyday
Layered
Fashion
Statement
Unique
Metal
18K White Gold
White Gold
Yellow Gold
Rose Gold
White Gold
Yellow Gold
Platinum
Classic Lab Grown Diamond Open Cross Pendant Necklace In 18K White Gold - Lucenjuri Classic Lab Grown Diamond Open Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Bead Bright Set Lab Grown Diamond Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Tapered Baguette and Asscher Lab Grown Diamond Cross Pendant In 18K White 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 White Gold - Lucenjuri Beveled Edge Polished Cross Pendant Necklace In 18K White Gold - Front Angle View
Beveled Edge Polished Cross Pendant Necklace
$650$1,090
Classic Round Lab Grown Diamond Cross Pendant Necklace In 18K White Gold - Lucenjuri Classic Round Lab Grown Diamond Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Baguette and Princess Lab Grown Diamond Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Mixed Radiant Lab Grown Diamond Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Tapered Baguette and Round Lab Grown Diamond Cross Pendant In 18K White 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 White Gold - Lucenjuri Oval and Round Lab Grown Diamond Cross Necklace In 18K White 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 White Gold - Lucenjuri Lab Grown Diamond Pavé Edge Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Round Lab Grown Diamond Prong Set Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Round Solitaire Lab Grown Diamond Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Round Lab Grown Diamond Flare Edge Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Round Lab Grown Diamond French Pavé Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Round and Asscher Lab Grown Diamond Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Marquise and Asscher Lab Grown Diamond Cross Necklace In 18K White Gold - Front Angle View
Marquise and Asscher Lab Grown Diamond Cross Necklace
$850$1,420
Round Lab Grown Diamond Cross Pendant Necklace In 18K White Gold - Lucenjuri Round Lab Grown Diamond Cross Pendant Necklace In 18K White 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 White Gold - Lucenjuri Shared Prong Round Lab Grown Diamond Cross Necklace In 18K White 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.
Find a premium heirloom piece within our 18K white gold lab grown diamond cross necklaces collection, where substantial precious metal purity meets elite light performance.
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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 White Gold

Indulge in a prestigious, high-purity standard when you buy 18K white gold cross necklaces at Lucenjuri. Boasting a 75% pure gold content, these pieces deliver a substantial, luxurious weight against the skin and an elite, liquid-mirror luster. This high-end canvas is the ultimate fit for our most intricate layouts—like our multi-stone marquise and asscher cross designs—creating a striking optical illusion that visually expands the apparent footprint of every hand-set stone.

Looking for the ultimate hypoallergenic alternative? Explore our master-engineered Platinum Lab Diamond Cross Necklaces.

Experience Curated Craftsmanship & Ethical Luxury at Lucenjuri

Designed for the true collector, our 18K white gold settings feature an open, light-flooded undergallery to fuel the diamond's internal fire. Each sustainable necklace is anchored by a premium solid gold chain, representing an uncompromised investment in sustainable luxury and artisan bench work.

FAQs

What is the difference between 14K and 18K white gold cross pendants?

It comes down to prestige and purity. Our 18K white gold features a higher percentage of pure gold (75%), giving the pendant a more substantial, premium heft and an elite, liquid-mirror luster.

Will the 18K white gold setting amplify my cross's sparkle?

Yes. Because 18K white gold is finished with an ultra-premium white rhodium sheen, the polished prongs and borders act as a visual extension of the diamonds, making them look noticeably brighter.

Is an 18K white gold cross necklace safe for sensitive skin?

Yes. The high gold purity means fewer base metal alloys are present, making 18K white gold an exceptional, high-tier option for anyone with mild metal sensitivities.