Diamond Necklaces

Where Brilliance Meets Meaning
Celebrate timeless elegance with our captivating diamond necklaces—each piece designed to tell a story of love, strength, and sophistication. From the spiritual grace of a diamond cross necklace to the romantic charm of a diamond heart necklace, this collection offers something for every moment and mood. Whether you’re drawn to a classic gold diamond necklace or the icy radiance of a white gold diamond necklace, our curated pieces combine luxury and symbolism in a way only diamonds can. Handpicked for clarity and brilliance, these necklaces are the perfect expression of personal style and enduring beauty.

392 products
  • .925 Sterling Silver Diamond Heart 18" Pendant Necklace (I-J Color, I2-I3 Clarity)
    .925 Sterling Silver Diamond Heart 18
    Regular price
    $532.67
    Sale price
    $532.67
  • 14K White Gold Oval Green Emerald and Diamond Halo Pendant Necklace - 18" Inches
    14K White Gold Oval Green Emerald and Diamond Halo Pendant Necklace - 18
    Regular price
    $1,383.43
    Sale price
    $1,383.43
  • 14K White Gold Oval 6x4 MM Green Emerald and Diamond Halo Pendant Necklace - 18 inch
    14K White Gold Oval 6x4 MM Green Emerald and Diamond Halo Pendant Necklace - 18 inch-0
    Regular price
    $2,283.80
    Sale price
    $2,283.80
  • 10K White Gold Oval Blue Sapphire and Diamond Double Charm Pendant Necklace - 18" Inches
    10K White Gold Oval Blue Sapphire and Diamond Double Charm Pendant Necklace - 18
    Regular price
    $1,052.68
    Sale price
    $1,052.68
  • 14K White Gold 6x4 Pear Red Ruby and Diamond Halo Pendant Necklace - 18" Inches
    14K White Gold 6x4 Pear Red Ruby and Diamond Halo Pendant Necklace - 18
    Regular price
    $2,063.30
    Sale price
    $2,063.30
  • 14K Rose Gold 1 3/8 Cttw Oval Lab Grown Diamond Dangle Station Necklace - 17" Inches
    14K Rose Gold 1 3/8 Cttw Oval Lab Grown Diamond Dangle Station Necklace - 17
    Regular price
    $2,050.81
    Sale price
    $2,050.81
  • 14K Yellow Gold Plated Silver 1/4 Cttw Diamond "Boss" Pendant Necklace - 18 Inch
    14K Yellow Gold Plated Silver 1/4 Cttw Diamond
    Regular price
    $324.29
    Sale price
    $324.29
  • 14K Yellow Gold Red Ruby and Diamond Trio Bar Line Necklace (I-J Color, SI2-I1 Clarity) - 18 inch
    14K Yellow Gold Red Ruby and Diamond Trio Bar Line Necklace (I-J Color, SI2-I1 Clarity) - 18 inch-0
    Regular price
    $2,118.43
    Sale price
    $2,118.43
  • 14KT Yellow Gold 1/2 Cttw Diamond Butterfly Station Paperclip Station Necklace (I-J Color, I1-I2 Clarity) - Adjustable 15"-17" Inches
    14KT Yellow Gold 1/2 Cttw Diamond Butterfly Station Paperclip Station Necklace (I-J Color, I1-I2 Clarity) - Adjustable 15
    Regular price
    $1,300.01
    Sale price
    $1,300.01
  • .925 Sterling Silver 1 1/4 Cttw Diamond Shih Tzu Dog Pendant Necklace 18 inch (Black and I-J Color, I2-I3 Clarity)
    .925 Sterling Silver 1 1/4 Cttw Diamond Shih Tzu Dog Pendant Necklace 18 inch (Black and I-J Color, I2-I3 Clarity)-0
    Regular price
    $876.65
    Sale price
    $876.65
  • .925 Sterling Silver Cursive Mom Heart Diamond Accent Pendant Necklace (J-K Color, I2-I3 Clarity) - 18" Inches
    .925 Sterling Silver Cursive Mom Heart Diamond Accent Pendant Necklace (J-K Color, I2-I3 Clarity) - 18
    Regular price
    $109.31
    Sale price
    $109.31
  • .925 Sterling Silver Purple Amethyst Marquise and Diamond Accent Fleur De Lis Pendant Necklace (H-I Color, SI1-SI2 Clarity) - Size 18"
    .925 Sterling Silver Purple Amethyst Marquise and Diamond Accent Fleur De Lis Pendant Necklace (H-I Color, SI1-SI2 Clarity) - Size 18
    Regular price
    $323.18
    Sale price
    $323.18
  • .925 Sterling Silver 1/7 Cttw Lab Grown Diamond Beaded Love Circle Pendant Necklace - Size 18 Inches
    .925 Sterling Silver 1/7 Cttw Lab Grown Diamond Beaded Love Circle Pendant Necklace - Size 18 Inches-0
    Regular price
    $281.30
    Sale price
    $281.30
  • .925 Sterling Silver 1/7 Cttw Lab Grown Diamond Diamond Shaped Pendant Necklace - Size 18 Inches
    .925 Sterling Silver 1/7 Cttw Lab Grown Diamond Diamond Shaped Pendant Necklace - Size 18 Inches-0
    Regular price
    $281.30
    Sale price
    $281.30
  • 10K Gold 1/10 Cttw Bezel Set Solitaire Princess Cut Diamond Kite Shaped Pendent Necklace - 18" Inches
    10K Gold 1/10 Cttw Bezel Set Solitaire Princess Cut Diamond Kite Shaped Pendent Necklace - 18
    Regular price
    $340.17
    Sale price
    $340.17
  • 14K Gold Floating 1/2 Cttw Lab Grown Diamond Solitaire Pendant Necklace - 18" Inches
    14K Gold Floating 1/2 Cttw Lab Grown Diamond Solitaire Pendant Necklace - 18
    Regular price
    $866.72
    Sale price
    $866.72
  • 10K White Gold Bezel Set Princess Diamond 3 Stone Kite Shape and Station Necklace (H-I Color, SI2-I1 Clarity) - 18" Inches
    10K White Gold Bezel Set Princess Diamond 3 Stone Kite Shape and Station Necklace (H-I Color, SI2-I1 Clarity) - 18
    Regular price
    $843.56
    Sale price
    $843.56
  • IGI Certified 14k White Gold 1/2 cttw Lab Grown Oval Shape Solitaire Diamond East West 18" Pendant Necklace (E-F Color, VS1-VS2 Clarity)
    IGI Certified 14k White Gold 1/2 cttw Lab Grown Oval Shape Solitaire Diamond East West 18
    Regular price
    $741.04
    Sale price
    $741.04
  • Two Tone .925 Sterling Silver 1/6 cttw Diamond Symbol Key Pendant Necklace (H-I, I1-I2)
    Two Tone .925 Sterling Silver 1/6 cttw Diamond Symbol Key Pendant Necklace (H-I, I1-I2)-0
    Regular price
    $221.75
    Sale price
    $221.75
  • Sterling Silver 7/8 cttw Baguette Diamond Heart Pendant Necklace (I-J, I2-I3)
    Sterling Silver 7/8 cttw Baguette Diamond Heart Pendant Necklace (I-J, I2-I3)-0
    Regular price
    $691.43
    Sale price
    $691.43

Why Diamond Necklaces Are Always in Style

A diamond necklace is more than a piece of jewelry—it’s a symbol of timeless beauty, elegance, and emotional connection. For centuries, diamonds have been revered for their clarity, durability, and radiant fire. Today, they remain the ultimate expression of luxury and meaning.

Whether you’re looking for a meaningful gift, a bold statement, or a subtle sparkle, our diamond cross necklaces, diamond heart necklaces, and classic solitaire styles offer something for every occasion. These pieces are crafted not only for brilliance but for wearability—designed to move with you, shine with you, and grow with you through life’s milestones.

Signature Styles in Our Diamond Necklace Collection

1. Diamond Cross Necklace

A diamond cross necklace is both a spiritual emblem and a fashion-forward accessory. Crafted with precision, this style combines spiritual symbolism with the unmatched elegance of fine diamonds.

  • Perfect for religious milestones like confirmations or baptisms
  • Available in simple solitaire styles or pavé diamond designs
  • Pairs well with minimal chains for a balanced everyday look

2. Diamond Heart Necklace

Romantic and refined, a diamond heart necklace represents love in its purest form. These necklaces make the perfect gift for anniversaries, Valentine's Day, or birthdays.

  • Set with brilliant-cut diamonds for maximum sparkle
  • Available in open heart and full heart designs
  • A classic keepsake that’s always in style

3. Gold Diamond Necklace

A gold diamond necklace brings the warmth of yellow gold into harmony with the fire of diamonds. These pieces offer a luxurious feel and timeless appeal.

  • Great for warm-toned skin
  • Elevates any neckline with golden glow
  • Often chosen for milestone gifts or family heirlooms

4. White Gold Diamond Necklace

Modern and luminous, the white gold diamond necklace is ideal for lovers of contemporary elegance. The icy hue of white gold enhances the brilliance of each diamond.

  • Perfect for bridal wear or evening looks
  • Blends effortlessly with other white metal jewelry
  • Versatile enough for daily sophistication

How to Style Your Diamond Necklace

Whether you’re heading to work, out for dinner, or walking down the aisle, a diamond necklace can elevate your look with minimal effort. Here are styling tips for each major type:

Minimalist Daywear

Pair a diamond cross necklace or solitaire pendant with a silk blouse or simple tee for refined day-to-night style.

Romantic Evenings

A diamond heart necklace worn with a plunging neckline or strapless gown adds both sparkle and sentiment to your ensemble.

Bold Layering

Layer a gold diamond necklace with mixed-length chains or pair a white gold diamond necklace with matching earrings for maximum impact.

Office-Ready

A sleek white gold solitaire or geometric pendant can enhance your professional wardrobe with understated luxury.

Caring for Your Diamond Necklace

Diamonds are among the hardest substances on Earth, but even they need proper care to stay brilliant. Here’s how to maintain your diamond necklace:

Daily Care

  • Avoid exposure to makeup, lotions, and perfumes
  • Wipe gently with a lint-free cloth after each wear
  • Remove before showering, swimming, or working out

Deep Cleaning

  • Soak in warm water mixed with mild dish soap
  • Use a soft brush to clean around the prongs
  • Pat dry with a soft, non-abrasive cloth

Storage Tips

  • Store in individual pouches or lined boxes to prevent scratching
  • Keep diamond necklaces separate from softer gemstones
  • For white gold diamond necklaces, use anti-tarnish strips to maintain the bright white finish

When to Gift or Wear a Diamond Necklace

Diamond necklaces are among the most cherished gifts and personal investments—perfect for marking life’s biggest and most beautiful moments.

Weddings & Anniversaries

A white gold diamond necklace makes the perfect bridal accessory or anniversary surprise. It symbolizes enduring love and elegance.

Religious Occasions

Gift a diamond cross necklace for a confirmation, first communion, or spiritual milestone. It’s a meaningful keepsake with both faith and fashion appeal.

Birthdays & Romantic Moments

The diamond heart necklace is a go-to for birthdays, proposals, or celebrating love “just because.”

Personal Milestones

Whether it's a promotion, graduation, or a moment of self-celebration, a gold diamond necklace offers the ultimate reward in wearable luxury.

Craftsmanship You Can Trust

At Oath Jewelry, we prioritize quality and integrity in every diamond necklace we create. Our diamonds are:

  • Ethically Sourced – We only use conflict-free stones, certified by trusted institutions
  • Expertly Cut – To maximize brilliance, each stone is precisely faceted
  • Securely Set – Every necklace undergoes multiple inspections to ensure secure prongs and durability

From the sparkle of a diamond heart necklace to the clean symmetry of a diamond cross necklace, you’ll feel the difference in our craftsmanship from the moment you unbox your piece.


Frequently Asked Questions

1. What makes a diamond cross necklace special?

A diamond cross necklace blends religious symbolism with refined elegance. It’s often gifted for spiritual milestones and worn daily as a cherished keepsake.

2. Can I layer my diamond heart necklace with other necklaces?

Absolutely. A diamond heart necklace pairs well with both gold and silver chains and can be styled with chokers or longer pendants for a personalized layered look.

3. Is a gold diamond necklace suitable for everyday wear?

Yes. Gold is durable and resistant to tarnish, making a gold diamond necklace ideal for regular use—just follow simple care guidelines.

4. Does white gold tarnish over time?

White gold diamond necklaces are typically rhodium-plated to preserve their bright sheen. While the plating may wear over time, it can be easily refreshed by a jeweler.

5. How do I clean my diamond necklace at home?

Soak it in lukewarm water with a few drops of mild dish soap, use a soft toothbrush for cleaning, and dry with a soft cloth. Avoid harsh cleaners.

6. What is the difference between white gold and yellow gold diamond necklaces?

White gold diamond necklaces have a cool, contemporary feel, while gold diamond necklaces offer warmth and vintage charm. Your choice depends on your skin tone and style preference.

7. Are diamond necklaces a good investment?

Yes. Diamonds retain their value and offer enduring appeal. A well-made diamond necklace can be worn for decades and passed down as a treasured heirloom.

8. Can I customize a diamond necklace?

At Oath Jewelry, we offer bespoke services for select pieces. Contact our support team to create a personalized diamond heart necklace or design a one-of-a-kind diamond cross necklace.

 
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