18K Necklaces

Elevate Your Style with Pure Radiance: Discover Our 18K Gold Necklaces
Crafted for those who appreciate the richness of true luxury, our collection of 18K gold necklaces is where timeless elegance meets impeccable craftsmanship. Whether you're searching for a statement piece or a delicate accent, our 18K necklaces are designed to reflect your refined taste. With a higher gold content than 10K or 14K, these necklaces offer a deeper, more vibrant hue that never goes out of style. Explore our range of 18K gold necklaces for women, curated to offer a perfect balance of beauty, value, and everyday sophistication.

30 products
  • 18K Yellow and White Gold 1 7/8 Cttw Princess Baguette Diamond Key Shaped 18" Pendant Necklace (H-I Color, SI1-SI2 Clarity)
    18K Yellow and White Gold 1 7/8 Cttw Princess Baguette Diamond Key Shaped 18
    Regular price
    $8,212.67
    Sale price
    $8,212.67
  • 18K Rose Gold Round Green Tsavorite Gemstone Cluster Spiral Snake Design 18" Pendant Necklace (AAA+ Quality)
    18K Rose Gold Round Green Tsavorite Gemstone Cluster Spiral Snake Design 18
    Regular price
    $6,307.93
    Sale price
    $6,307.93
  • 18K White Gold 1 1/10 Cttw Diamond and Pink Tourmaline Double-Strand Art Deco Inspired Chandelier 18" Pendant Necklace (F-G Color, VVS2-VS1 Clarity)
    18K White Gold 1 1/10 Cttw Diamond and Pink Tourmaline Double-Strand Art Deco Inspired Chandelier 18
    Regular price
    $10,332.05
    Sale price
    $10,332.05
  • 18K White Gold 3/8 Cttw Pave Set Diamond and Sky Blue Topaz and Blue Sapphire Gemstone Floral Teardrop Halo 18" Pendant Necklace (G-H Color, SI2-I1 Clarity)
    18K White Gold 3/8 Cttw Pave Set Diamond and Sky Blue Topaz and Blue Sapphire Gemstone Floral Teardrop Halo 18
    Regular price
    $5,117.23
    Sale price
    $5,117.23
  • 18K White Gold 2 1/6 Cttw Pave Set Diamonds and Red Ruby Openwork Circles 18" Pendant Necklace (G-H Color, SI2-I1 Clarity) - Adjustable up to 16" - 18"
    18K White Gold 2 1/6 Cttw Pave Set Diamonds and Red Ruby Openwork Circles 18
    Regular price
    $9,964.55
    Sale price
    $9,964.55
  • 18K Yellow Gold 2 1/3 Cttw Diamond, Sapphire, and Emerald Dog Tag with Dolphin Silhouette Convertible 18" Pendant Necklace and Brooch (G-H Color, SI1-SI2 Clarity)
    18K Yellow Gold 2 1/3 Cttw Diamond, Sapphire, and Emerald Dog Tag with Dolphin Silhouette Convertible 18
    Regular price
    $14,742.05
    Sale price
    $14,742.05
  • 18K White Gold 1/4 Cttw Round Diamond and 6x4mm Purple Tanzanite Halo 18" Pendant Necklace (H-I Color, VS1-VS2 Clarity)
    18K White Gold 1/4 Cttw Round Diamond and 6x4mm Purple Tanzanite Halo 18
    Regular price
    $5,334.05
    Sale price
    $5,334.05
  • 18K Rose Gold 3/8 Cttw Black and White Diamond Ball with Filigree Heart and Cluster Design 18" Pendant Necklace (Black and G-H Color, SI1-SI2 Clarity)
    18K Rose Gold 3/8 Cttw Black and White Diamond Ball with Filigree Heart and Cluster Design 18
    Regular price
    $3,416.81
    Sale price
    $3,416.81
  • 18K Rose Gold 3/4 Cttw Diamond and Purple Amethyst Cluster Heart Shape 18" Pendant Necklace (G-H Color, SI1-SI2 Clarity)
    18K Rose Gold 3/4 Cttw Diamond and Purple Amethyst Cluster Heart Shape 18
    Regular price
    $4,025.75
    Sale price
    $4,025.75
  • 18K 1.00 Cttw Diamond Cat and Bail Pendant Necklace Collar with Matte Finish (F-G Color, VS2-SI1 Clarity)
    18K 1.00 Cttw Diamond Cat and Bail Pendant Necklace Collar with Matte Finish (F-G Color, VS2-SI1 Clarity)-0
    Regular price
    $9,300.85
    Sale price
    $9,300.85
  • 18K 3/4 Cttw Diamond and 12.5 MM Cultured Black Tahitian Pearl Heart Pendant Necklace (G-H Color, SI1-SI2 Clarity) - 18" Inches
    18K 3/4 Cttw Diamond and 12.5 MM Cultured Black Tahitian Pearl Heart Pendant Necklace (G-H Color, SI1-SI2 Clarity) - 18
    Regular price
    $5,554.55
    Sale price
    $5,554.55
  • 18K White Gold Diamond Accent and Round London Blue Topaz and Pear Cut Sky Blue Topaz Dangle Drop 18" Pendant Necklace (G-H Color, SI1-SI2 Clarity)
    18K White Gold Diamond Accent and Round London Blue Topaz and Pear Cut Sky Blue Topaz Dangle Drop 18
    Regular price
    $3,496.55
    Sale price
    $3,496.55
  • 18K Yellow Gold 1/2 Cttw Brown Diamond and Multi-Size Oval Yellow Sapphire Cluster Cascade Station Necklace (Brown Color, SI1-SI2 Clarity) - Adjustable up to 14" to 16"
    18K Yellow Gold 1/2 Cttw Brown Diamond and Multi-Size Oval Yellow Sapphire Cluster Cascade Station Necklace (Brown Color, SI1-SI2 Clarity) - Adjustable up to 14
    Regular price
    $6,987.80
    Sale price
    $6,987.80
  • 18K Rose and White Gold Diamond Accent and London Blue Topaz and Cushion Cut Smoky Quartz Gemstone Dangle Drop 18" Pendant Necklace (G-H Color, SI1-SI2 Clarity)
    18K Rose and White Gold Diamond Accent and London Blue Topaz and Cushion Cut Smoky Quartz Gemstone Dangle Drop 18
    Regular price
    $3,165.80
    Sale price
    $3,165.80
  • 18K Yellow Gold Diamond and Red Ruby Floral Cascade Statement Necklace with 16" Inch Bead Chain (F-G Color, VS1-VS2 Clarity)
    18K Yellow Gold Diamond and Red Ruby Floral Cascade Statement Necklace with 16
    Regular price
    $20,254.55
    Sale price
    $20,254.55
  • 18K White Gold Diamond Accent and Pear Cut Sky Blue Topaz and Pear Cut Black Onyx Dangle Drop 18" Pendant Necklace (G-H Color, SI1-SI2 Clarity)
    18K White Gold Diamond Accent and Pear Cut Sky Blue Topaz and Pear Cut Black Onyx Dangle Drop 18
    Regular price
    $3,132.73
    Sale price
    $3,132.73
  • 18K Rose Gold 3/4 Cttw Pave Diamonds and Graduated Red Ruby Gemstone Curved Bar Choker Necklace (G-H Color, SI1-SI2 Clarity) - Adjustable up to 14" - 16.5"
    18K Rose Gold 3/4 Cttw Pave Diamonds and Graduated Red Ruby Gemstone Curved Bar Choker Necklace (G-H Color, SI1-SI2 Clarity) - Adjustable up to 14
    Regular price
    $4,176.43
    Sale price
    $4,176.43
  • 18K 1/3 Cttw Diamond and Red Ruby Open Heart with Black Rhodium 18" Pendant Necklace (G-H Color, VS2-SI1 Clarity)
    18K 1/3 Cttw Diamond and Red Ruby Open Heart with Black Rhodium 18
    Regular price
    $4,084.55
    Sale price
    $4,084.55
  • 18K Yellow Gold Blue Enamel 1/10 Cttw Round Pave Diamonds Heart Shape 18" Pendant Necklace (G-H Color, SI1-SI2 Clarity) - Adjustable up to 16" - 18"
    18K Yellow Gold Blue Enamel 1/10 Cttw Round Pave Diamonds Heart Shape 18
    Regular price
    $1,974.74
    Sale price
    $1,974.74
  • 18K Rose Gold 1/2 Cttw Diamond and Freshwater Pearl Double Strand Station Necklace (G-H Color, SI1-SI2 Clarity) - Adjustable up to 16" to 20"
    18K Rose Gold 1/2 Cttw Diamond and Freshwater Pearl Double Strand Station Necklace  (G-H Color, SI1-SI2 Clarity) - Adjustable up to 16
    Regular price
    $5,003.30
    Sale price
    $5,003.30

Why Choose an 18K Gold Necklace?

18K gold necklaces are made of 75% pure gold, blended with alloy metals for added strength and durability. This high purity gives 18K gold its rich, luminous color—making it a favorite among fine jewelry lovers.

Benefits of 18K Gold:

  • Luxurious Appearance – Warmer and deeper gold tone than 14K or 10K
  • Hypoallergenic – Great for sensitive skin due to higher gold content
  • High Value – Holds long-term worth as an investment in real gold
  • Perfect for Special Occasions – A top choice for milestone gifts and heirlooms

When you wear an 18K necklace, you're embracing a level of sophistication that speaks volumes—without saying a word.

18K Gold Necklace Styles: A Blend of Tradition and Modernity

Our collection of 18K gold necklaces includes everything from fine chains to elegant pendants, offering versatile options for every outfit and occasion.

Top Styles in the Collection:

  • Cable and Box Chains – Sleek and refined for daily elegance
  • Bar Necklaces – Contemporary pieces that can be customized
  • Lariat and Y-Chains – Fashion-forward styles with a feminine touch
  • Gemstone or Diamond Pendants – Add brilliance to your look with natural stones

Each necklace is expertly crafted to showcase the warmth and glow of 18K gold, providing long-lasting shine and style.

18K Gold Necklaces for Women: Timeless Feminine Elegance

Designed with sophistication and wearability in mind, our 18K gold necklaces for women are ideal for everything from casual days to black-tie evenings. With lightweight construction and elegant designs, these pieces offer comfort without sacrificing luxury.

Styling Ideas for Women:

  • Layered Look: Stack several thin 18K necklaces of different lengths for a bold yet elegant effect.
  • Everyday Glamour: A single gold chain paired with small hoops adds effortless polish to daily outfits.
  • Special Events: A bold 18K pendant or gemstone necklace complements formalwear beautifully.
  • Romantic Aesthetic: Heart-shaped pendants or script nameplates in 18K gold offer a personalized touch.

No matter your aesthetic—classic, minimalist, or trendy—an 18K gold necklace for women adds that perfect golden touch.

How to Wear & Pair 18K Necklaces

Because 18K gold necklaces have such a rich color and smooth finish, they blend seamlessly with both modern and traditional styles. Here’s how to make the most of yours:

For a Casual Look:

  • Choose a thin 18K gold necklace with a small pendant or charm
  • Pair it with jeans and a silk blouse or casual dress
  • Add 18K gold stud earrings or a dainty bracelet for cohesion

For Work or Business:

  • Opt for a structured chain such as a box or curb chain
  • Avoid flashy pendants—keep the focus clean and professional
  • Complement with a classic gold watch or delicate rings

For Evening or Formal Wear:

  • A diamond-accented 18K gold necklace creates a luxe vibe
  • Choose longer lengths like opera or lariat styles for dramatic effect
  • Pair with matching earrings or a statement bracelet in 18K gold

From day to night, your 18K necklace effortlessly enhances your entire look.

Jewelry Care: Preserving the Beauty of Your 18K Gold Necklace

Although 18K gold necklaces are less likely to tarnish compared to lower karat gold, they still require gentle care to maintain their brilliance over time.

Daily Care Tips:

  • Wipe your necklace with a clean, soft cloth after each wear
  • Store it separately in a soft pouch or box to avoid scratches
  • Remove your necklace before applying perfumes, lotions, or hairsprays

Deep Cleaning:

  • Use warm water and a few drops of mild soap
  • Soak for 10–15 minutes, then gently scrub with a soft toothbrush
  • Rinse thoroughly and dry completely before storing

If worn frequently, it’s a good idea to have your necklace professionally cleaned and inspected once a year.

Occasions to Celebrate with 18K Necklaces

A finely crafted 18K gold necklace makes an ideal gift or personal keepsake for many of life’s important moments.

Perfect For:

  • Birthdays – Give the gift of real gold for a milestone celebration
  • Anniversaries – Symbolize lasting love with a piece that endures
  • Graduations – Mark achievements with meaningful luxury
  • Weddings – Ideal for brides, bridesmaids, or wedding guests
  • Everyday Elegance – Elevate daily wear with a golden signature piece

Whether it’s a gift for a loved one or a reward for yourself, an 18K necklace turns any moment into a golden memory.

Commitment to Quality and Craftsmanship

At Oath Jewelry, every 18K gold necklace is designed to blend artistry with integrity. Our pieces are made using responsibly sourced materials, carefully selected for their quality, durability, and aesthetic appeal.

What Sets Us Apart:

  • 100% Solid 18K Gold – Never gold-plated or filled
  • Hand-Inspected Quality – Each necklace passes detailed craftsmanship checks
  • Secure Clasps and Fine Finish – Built to last for decades
  • Ethically Sourced Gold and Gemstones – For guilt-free luxury

We take pride in offering heirloom-worthy necklaces that can be passed down through generations.


Frequently Asked Questions

1. What does 18K gold mean?

18K gold contains 75% pure gold and 25% alloy metals, offering a perfect balance of purity, durability, and color depth.

2. Is 18K gold better than 14K or 10K?

Yes, 18K gold has a higher gold content, giving it a richer hue and more luxurious appearance. It's softer than 14K but more valuable.

3. Are 18K gold necklaces good for daily wear?

While more delicate than lower-karat options, 18K necklaces are suitable for daily use if cared for properly.

4. Do 18K gold necklaces tarnish?

18K gold is highly resistant to tarnishing. However, exposure to chemicals or rough wear can affect its appearance over time.

5. Are your 18K gold necklaces solid gold?

Yes, all our 18K gold necklaces are made from solid gold—not plated, not filled—for lasting value and beauty.

6. Are 18K gold necklaces for women only?

Our 18K gold necklaces for women make up the majority of the collection, but many styles are unisex or can be customized for any gender.

 
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