Top 6 Best Online Stores to Buy Diamond Necklaces (2020 Review)

Let's suppose you're shopping for a diamond necklace. There are so many options online, how do you know where to start?

Start here!

I'll answer common questions like:

  • Where Can You Find The Best Diamond Necklaces Online?
  • What Are The Red Flags When Shopping For Diamonds?
  • What Types Of Settings Are Available For Diamond Necklaces?
  • What Kind Of Chain Should You Look For?
Best Online Stores For Diamond Necklaces

Top 6 Places to Buy Diamond Necklaces Online

If you need the list quick, here are my top 6 picks for the best places to purchase quality diamond necklaces online. Keep reading for more information about each of these shops.

  1. James Allen (our top pick)
  2. Blue Nile (a close second)
  3. Whiteflash (best return policy)
  4. Brian Gavin (best value of warranty + diamonds)
  5. Leibish and Co (best fancy colored diamonds)
  6. Abe Mor (best place to sell diamonds)

Diamond necklaces are a favorite in women's accessories since they go with everything.

Not only are they versatile, but they make perfect gift ideas for a birthday or Valentine's Day.

If you are an April baby, or you need to get a gift for one, a diamond necklace is a fitting, as diamond is also the birthstone for April

Diamond necklaces look sophisticated when paired with a pair of diamond earrings, diamond bracelets, or even gemstone jewelry. They have classic, meaningful, and unique designs too.

Read Also: Best amythyst pendants to buy?

I've picked out some of the best diamond necklace online retailers I found on the web. So let the hunt for diamond necklaces begin!

Buying Diamond Necklaces At James Allen

Buying Diamond Necklaces At James Allen

When you buy a diamond necklace at James Allen, you are choosing the leading online retailer in diamonds and fine jewelry.

James Allen offers its customers a wide selection of fashion diamond necklaces and diamond pendants. 

Under the diamond pendants, you get to select your loose diamond using filters like carat weight, clarity, cut, and color grades. You also get to pick out what metal setting you want, such as platinum, yellow gold, rose gold, and white gold.

Keep in mind that not all settings are available in all metals.

In the fashion diamond necklaces category, there are plenty of different styles. Some of these styles include classics like diamond halo pendants, bar necklaces, drop necklaces, and other unique styles.

My favorite necklace I've seen while scrolling through is this exquisite fancy yellow diamond pendant. It's in a higher price range, but there are a ton of options below $1000 to choose from.

fancy yellow diamond necklaces from james allen

You can also choose to place a fancy color diamond into a pendant, but I think they are overpriced, especially for the quality of the natural stones.

James Allen warranties all their diamond jewelry with a lifetime guarantee of wear and tear repairs such as cleaning or polishing. They also do other repairs like breaks in the chain or a broken clasp.

Click here for our full James Allen review.


  • Lifetime Warranty covers wear and tear repairs
  • Wide selection of fashion diamond necklaces
  • Choose your own pendant
  • Affordable prices
  • GIA certified diamond pendants


  • Overpriced fancy color diamonds

Buying Diamond Necklaces At Blue Nile

Blue Nile offers a large selection of diamond necklaces featuring classic designs as well as unique ones too.

They have plenty of commonly requested bridal jewelry, such as the diamond drop bar and diamond pearl jewelry.

They carry jewelry in a range of price options. However, most of the pieces are higher end items like this gorgeous three-tiered diamond necklace. 

diamond necklaces from blue nile

If you are looking for a single diamond or solitaire pendant, Blue Nile is also a fantastic choice. It has the same concept as James Allen for choosing your own loose diamonds through filters.

They have colored diamonds as well, but you can't set them into the pendants, nor are you able to do a 360 view like you can with the colorless diamonds.

Fancy color diamonds have to be purchased individually as loose stones. Also, I've noticed they don't carry black diamond pendants either. 

yellow gold diamond necklace from blue nile

In their fashion necklace collection, they have a wide range of modern and classic styles.

You can choose from all diamond necklaces or gemstone necklaces. Blue Nile also offers more affordable diamond jewelry set in sterling silver. 

It's difficult to see the details in the pictures. So, if you're not feeling the look of the necklace after you get it, they do offer 30 day returns and pay for the shipping label.

Read Also: Sales tax on Blue Nile jewelry?

Keep in mind though that diamond necklaces that are engraved are non-refundable.

Click here for our full Blue Nile review.


  • Wide selection
  • Affordable
  • 30 day returns
  • Solitaire necklaces and fashion necklaces


  • No black diamond pendants
  • Can't set fancy colored diamonds in pendants

Buying Diamond Necklaces At Leibish & Co.

Leibish & Co specializes in high quality fancy colored diamonds. You won't find many colorless diamonds on the site for loose stones, but you can find a pretty good amount in the already-set necklace section under fine jewelry. 

You can choose from yellow, gray, brown, orange, and pink diamonds to customize into a pendant. The prices are definitely in the higher tier, as fancy vivid color diamond prices can skyrocket.

I don't like that they don't have any kind of 360 view, only a magnified picture of it. I like being able to see the stone from all angles. 

But man, let me tell you. These pieces are breathtaking. So, if you have the money and you're interested, I definitely recommend them. The colorless diamonds look so pretty in a halo around a fancy color diamond.

Check out this one here that actually features a halo of pink diamonds.

They also offer a selection gemstone/diamond hybrid pendants, like this pretty tanzanite and pink tourmaline diamond drop necklace 

tanzanite pink diamond necklace from leibish

When it comes to benefits, Leibish and Co. has a great lifetime warranty like James Allen, covering routine care for life.

That alone is going to help you keep an expensive piece in tip-top shape. They offer 30 day refunds if you're not satisfied and make the process easy for you as well. 


  • Vivid fancy diamonds
  • Create a pendant option
  • Gemstone diamond pendants
  • Lifetime warranty covers wear and tear


  • No 360 view
  • Few colorless loose diamonds. 
  • Can be very expensive

Buying Diamond Necklaces At Whiteflash

Whiteflash is another popular online diamond jewelry store. They carry almost 100 diamond necklaces, pendants included, which is a fair amount for an online retailer. 

You get the choice of either selecting your loose diamond to be set into the setting of your choice, or you can select a carat weight of pre-selected stones with general diamond grades.

It's kind of strange, but this may be a more affordable option for someone who isn't necessarily looking for the top of the line diamond.

The diamond pendants collection not only features solitaire pendants, but fun designs that other competitors don't carry. There are a couple of classics still, like my personal favorite, the Journey Pendant.

This pendant has 7 of Whiteflash's personally-cut diamond collection, A Cut Above Diamonds. These branded diamonds are super ideal cut. 

Additionally, Whiteflash offers A Cut Above Diamonds in diamond rings and diamond earrings, so you can get the whole collection. 

Whiteflash offers a temporary warranty for the first year. All routine work such as polishing, retipping of prongs, tightening of stones, and polishing are done for free within one year. 

whiteflash diamond pendants online

After that you'll have to pay for any work done if you didn't purchase the care plans they offer during checkout.

Remember that anything purchased from the virtual collection service has to be returned within 10 days, not the normal 30 day warranty like with the other pieces. 


  • Fair size collection of diamond necklaces
  • Offers excellent care plans for purchase
  • Pre-selected carat weight offered
  • Free service for a year


  • Difficult to navigate 
  • Bad light to view diamond characteristics

Buying Diamond Necklaces At Brian Gavin

Brian Gavin does not have the best selection when it comes to diamond necklaces. When I look at their fashion collection, there are less than 30 items, which is sort of a bummer.

However, in the collection they do have, you can tell that Brian Gavin makes high quality diamond jewelry. Check out this pretty Flowers of Paradise pendant complete with gorgeous matching rose gold diamond stud earrings.

brian gavin flowers of paradise pendant

When it comes to solitaire diamond pendants, even though Brian Gavin doesn't have as many as some of the other competitors, the settings are really unique.

Most retailers carry the martini pronged, four pronged, or scalloped basket when it comes to diamond pendants. But Brian Gavin steps outside the box and presents its customers with this noteworthy princess cut bezel setting.

Brian Gavin does custom jewelry as well. Prices vary based on design, but you can talk to a representative anytime if that interests you. 

Lastly, Brian Gavin gives its customers a manufacturing warranty, but does not cover any repairs as a result of wear.

They also give a 30 day return policy.

Beyond that, Brian Gavin doesn't really cover a whole lot if you purchase outside of its signature collection. 

brian gavin diamond pendants


  • Matching pendants with other jewelry
  • Unique solitaire settings
  • Option for custom made


  • Brian Gavin gives its customers a manufacturing warranty, but does not cover any repairs as a result of wear.
  • Only trade up and buyback for signature collection
  • Difficult to navigate website

Buying Diamonds At Abe Mor

Abe Mor is a small diamond wholesaler that mainly works with retail jewelry stores by either providing them a piece of jewelry to purchase, or buying a whole collection.

However, you can purchase their pieces as a customer too. There aren't many choices, but of the choices, you can tell how much detail and pride is put into their pieces. Look at this fancy yellow trillion cut diamond pendant.

They do have a collection of non-pendant diamond necklaces, but once again, it is a very scanty selection. Abe Mor aims for you to apply for an account with them, so they don't display any of the prices.

However, by just looking at the selection, I can gauge that Abe Mor diamond jewelry is more expensive than other consumers. The fact that they are selling to diamond retailers should give us an inkling on how nice their stuff is. 

Abe Mor princess cut halo diamond

Abe Mor can also help you sell your diamonds.

Maybe you have some old diamond jewelry you don't wear and would like to see some money back on.

It's true that diamonds don't have the best resale value, but Abe Mor is the best in the business.

They'll sell it for you while you collect the commission, or you can sell through them and they sit behind the scenes. 

Abe Mor does not offer a loose stone to be set into a diamond pendant or for you to know any of the characteristics of the diamonds.

Read Also: What is diamond carat weight? 

They do not appear to have any warranties for their jewelry or any type of lifetime guarantee. 


  • High class pieces
  • Best place to sell diamonds


  • No warranties
  • Small selection
  • No choosing of stone
  • Can't see prices

FAQ When Buying Diamond Necklaces Online

The vast selection of diamond necklaces online can be overwhelming. 

And there are a lot of questions to ask. Should you get one that's all diamonds or a mix of gemstones and diamonds? What will you set it in? Rose gold? White gold? Maybe yellow gold?

online diamond necklace

The possibilities are endless. Check out the most asked questions about buying diamonds online. 

Is It Cheaper To Buy Diamond Necklaces Online?

The price of a diamond necklace greatly differs according to diamond specifics, such as carat, clarity, color, cut, and style. Some settings, like the bezel setting, require extra craftsmanship and end up being priced higher.

Also, the number of stones will impact that as well. Additionally, the metal in which you have the necklace set in has a big effect on price. Lastly, the type of chain and thickness of it will affect price. 

I would say that buying diamond necklaces online is going to be around the same that you'd find in jewelry stores, only the quality is better online.

Actually, I was just looking at my own engagement ring today I bought from a retail jeweler. I started looking at Blue Nile's loose stone collection and basically created my ring to its exact specifications that its certification says.

Turns out Blue Nile was selling the same ring for at least $1500 less. I could have purchased a much better diamond for cheaper.

Red Flags When Buying Diamond Necklaces Online?

1. Conflict diamonds

Conflict diamonds can be a hot topic among diamond jewelry customers. While it's not near as productive as it used to be, sometimes the concern still pops up.

Conflict diamonds, also referred to as blood diamonds, are diamonds that are mined and used to fund wars and spread terrorism. 

Read Also: How to buy ethically sourced diamonds?

Every retailer on this list sells conflict-free diamonds and you can view their policies on each respective website. 

2. Chain

Chances are, if you're buying a diamond pendant, you're buying a chain too. Some of you may use the chain it comes with, while others may opt for a different chain. Before purchasing a diamond necklace, you should do your research on chains.

Read Also: What are the options for necklace chains?

Some chains are very fragile, while others catch your hair. If you are a little harder on your jewelry, you might need a thicker chain like a rope chain. 

How To Get The Best Deal When Buying Diamonds Online?

If you want the best deal on diamond necklaces, make sure to do your research first. Know which chains you are wanting it and choose quality materials that are going to help you preserve your necklace.

Make sure you are storing it correctly and not with other jewelry. 

Another bonus is to purchase from a company that has a lifetime warranty, like James Allen or Leibish & Co. They cover all the normal repairs that you're supposed to have done every 6 months are so. And they do it for life and for free!

Learn More About Jewelry

Want to learn more about jewelry? Check out these other helpful resources!

Leave a Comment