Diamond Necklaces
The eternal brilliance of a dazzling diamond necklace is unmatched. An extraordinary, glittering eternity necklace or a timeless classic like a solitaire pendant is forever—and forever chic.
Shop Diamond Necklaces by Style
Build Your Own Diamond Pendant®
Blue Nile makes it easy to create your own diamond necklace.
Introducing Lightbox Lab-Grown Diamond Jewellery
The Lightbox jewellery collection features lab-grown diamonds that are among the world's finest, made with amazing quality and style. Every stone is produced with a guarantee of VS clarity and a cut grade of Very Good. This exclusive Lightbox assortment includes stunning colour options that are extremely rare in nature.
Top Questions and Answers About Diamond Necklaces
- While the price of a diamond necklace can range from a few hundred dollars to hundreds of thousands of dollars, you can find a gorgeous diamond necklace at any price point. A shimmering, single-diamond solitaire necklace is an affordable and beautiful piece of diamond jewellery, while an intricately adorned, diamond-encrusted eternity necklace will cost more.
- The worth of a one carat diamond necklace is largely based on the stone itself. The greater the clarity, cut, colour and carat of the diamond, the higher the value of the necklace. Higher quality one-carat diamond necklaces can fetch upwards of eight thousand dollars, while an equally brilliant one-carat, lab-grown diamond is far more affordable.
- A sturdy chain is your best bet for a diamond pendant—but that doesn't mean it has to be big and heavy. Cable chains are a popular choice for their solid construction and delicate appearance, and they're simple to repair if they break, increasing their longevity.
Only at Blue Nile
When it comes to celebrations we strive to make your experience as brilliant as our jewellery with the perfect pieces for every occasion.
Visit a Showroom
Meet our personal jewellers, explore bestselling styles, pick up an online order, arrange to preview something from our online collection and so much more.
Schedule an Appointment
Book a fun and interactive appointment with a diamond expert and get up-close views of diamond and jewellery options from the comfort of your own home.
Amazing Value
The highest-quality design at a great price.
Peace of Mind
30-day returns, diamond price-match guarantee and more.
Expert Guidance
The original online jeweller since 1999.
Inspiring Assortment
The perfect pieces for every occasion.