Top 8 Best Solitaire Diamond Rings | 2021 Reviews + Guide

The best solitaire diamond ring should last a lifetime like how you want your marriage to be, and the diamond ring should look presentable that your partner will appreciate.

Diamond is the favorite gemstone for engagement rings because it is the strongest and the hardest mineral on Earth, reflecting how married life should be. 

Its solitaire design does not directly relate to what a diamond ring symbolizes, but it is one of the favorite styles for an engagement ring. It is because this design directs the eyes’ attention to the gemstone.

Because you are willing to spend a serious amount of money on a diamond ring, make sure that it is worth every penny. It should be high-quality and authentic. You also want to make sure that your partner will appreciate its beauty, complimenting her fashion sense and lifestyle.  

Learn about solitaire diamond rings in this review.

Top 8 Best Solitaire Diamond Rings Reviewed

  1. Blue Nile Petite Cathedral Solitaire 1.07-Carat Radiant-Cut Ring in Platinum – Best Overall
  2. Blue Nile Petite Solitaire 0.51-Carat Princess Cut Diamond Ring in Platinum – Best Value
  3. James Allen Knife-Edge Solitaire 0.73-Carat Round Diamond Ring in White Gold – Editor’s Choice
  4. James Allen Classic Split Shank Solitaire 1.53-Carat Diamond Ring in White Gold
  5. Blue Nile Classic Four-Prong Solitaire 0.51-Carat Radiant-Cut Ring in White Gold
  6. Blue Nile Wide Band Solitaire 1.60-Carat Radiant-Cut Ring in Platinum
  7. Blue Nile Petite Solitaire 1.16-Carat Heart-Shaped Ring in Rose Gold
  8. Blue Nile Classic Comfort FIt Solitaire 0.61-Carat Marquise Ring in White Gold

#1. Blue Nile Petite Cathedral Solitaire 1.07-Carat Radiant-Cut Ring in Platinum – Best Overall

Blue Nile Petite Cathedral Solitaire

1.07-Carat Radiant-Cut

 

 

 

 

 

 

 

 

Specifications: 

  • Diamond’s carat-weight: 1.07 
  • Diamond’s color grade: D
  • Diamond’s clarity grade: FL
  • Diamond’s cut grade: very good
  • Metal: platinum

If you are looking for a ring that exudes the best shimmer and beauty, the Blue Nile Petite Cathedral Solitaire 1.07-Carat Radiant-Cut Ring in  Platinum is the best choice. Although perfection does not exist in this world, even for a ring, the almost perfect ones do. This ring is an example.

The ring’s diamond has a radiant-cut that gives generous brilliance intensified by the cathedral solitaire diamond style that puts the diamond on the pedestal. 

In addition to the cut itself, the cut grade is very good. Even though it is not the highest, it is good enough, and the radiant-cut compensates for it. 

The D color grade makes the ring appear colorless. The clarity grade is flawless (FL), meaning that this diamond is free from inclusions, allowing the light to pass through without any blockage. 

ProsCons
The ring setting compliments the diamond.
Expensive
A rare flawless clarity grade
Highest D color grade

#2. Blue Nile Petite Solitaire 0.51-Carat Princess Cut Diamond Ring in Platinum – Best Value

Blue Nile Petite Solitaire

0.51-Carat Princess Cut Diamond

 

 

 

 

 

 

 

 

 

Specifications: 

  • Diamond’s carat-weight: 0.51
  • Diamond’s color grade: D
  • Diamond’s clarity grade: VS1
  • Diamond’s cut grade: Astor Ideal
  • Metal: Platinum

The Blue Nile Petite Solitaire 0.51-Carat Princess Cut Diamond Ring in Platinum is the best choice if you want to give your partner a high-quality ring. Even though this ring has a diamond that is less than one carat, its beauty is at its best.

The petite solitaire design is the company’s best-seller. It provides simplicity and elegance without having to pay a lot for it. Its simplicity compliments the beauty of your diamond. Even though it only has 0.51-carat weight, the solitaire design will make up for it. 

Its diamond has the cut and color at the highest grades. The cut is at Blue Nile’s Astor Ideal grade, and the color is D grade. Even though this diamond is small, it will give a nice sparkle that your girlfriend will love. 

As for the clarity, there are minor inclusions that are almost difficult to see on a 10x magnification, which means that they are almost invisible to the naked eye. 

ProsCons
Astor Ideal grade
The ring’s elevated design makes it prone to snagging
D color gradeDiamond only has 0.51-carat weight

#3. James Allen Knife-Edge Solitaire 0.73-Carat Round Diamond Ring in White Gold – Editor’s Choice

James Allen Knife-Edge Solitaire0.73-Carat Round Diamond

 

 

 

 

 

 

 

 

Specifications: 

  • Diamond’s carat-weight: 0.73
  • Diamond’s color grade: G
  • Diamond’s clarity grade: VVS1
  • Diamond’s cut grade: Ideal
  • Metal: white gold

The James Allen Knife-Edge Solitaire 0.73-Carat Round Diamond Ring in White Gold is the best choice if you are looking for the perfect ring that goes well with a high-quality diamond.

0.73-carat may seem small to most people, especially that it is less than 1-carat. However, whatever it lacks makes up for its knife-edge solitaire ring design that goes well along with it. This ring’s design directs the eyes to focus on the diamond without any distractions. 

Also, the diamond that comes along with it is not all that bad. Even though it does not have the highest grades in the 4Cs, its rating is not below average. 

The G color grade is already at the higher spectrum. It is near-colorless, which you can only notice the tint when you compare it to the ones with the higher grade. 

The VVS1 clarity grade is next to the rare Internally Flawless (IF) rating. It means that if there are inclusions, these are difficult to see under a magnifying glass or loupe.  

The Ideal cut is next to James Allen’s highest cut grade, True Hearts. The diamond’s Ideal cut is still rare and superior to almost 97 percent of the diamonds worldwide. 

ProsCons
The ring’s design complements the diamond well
None of the diamond’s four Cs have the best rating
High-quality diamond
Diamond only has 0.73-carat weight
14-karat white gold

#4. James Allen Classic Split Shank Solitaire 1.53-Carat Diamond Ring in White Gold

James Allen Classic Split Shank Solitaire

1.53-Carat Diamond Ring in White Gold

 

 

 

 

 

 

 

 

Specifications: 

  • Diamond’s carat-weight: 1.53
  • Diamond’s color grade: G
  • Diamond’s clarity grade: VVS2
  • Diamond’s cut grade: Excellent
  • Metal: white gold 

If you want to flaunt your love and commitment, having your partner wear the James Allen Classic Split Shank Solitaire 1.53-Carat Diamond Ring in White Gold is the perfect way to do it. 

The diamond is big enough for everyone to notice because of its 1.53-carat weight. The color, clarity, and cut grades do not disappoint, though they do not have the highest rating. 

The G color grade is near-colorless, which you will only recognize the difference when compared to the ones with a higher grade. Its clarity grade describes that its diamond has inclusions, but not noticeable to the naked eye. Its cut grade is not the best, but still rare that only 3 percent of the world’s diamonds have this rating. 

Because of this diamond’s characteristics, it will not fail you if you want everyone to know that your partner is already engaged to you. The ring’s split-shank style helps you with that because its design looks as if it is always pointing to the center stone. 

ProsCons
14-karat white diamondn/a
High-quality diamond
Simple and elegant
Big carat-weight
ALSO READ:  Top 10 Best Pearl Rings | 2021 Reviews (PearlsOnly)

#5. Blue Nile Classic Four-Prong Solitaire 0.51-Carat Radiant-Cut Ring in White Gold

Blue Nile Classic Four-Prong Solitaire.51-Carat Radiant-Cut Ring in White Gold

 

 

 

 

 

 

 

 

 

Specifications: 

  • Diamond’s carat-weight: 0.51
  • Diamond’s color grade: D
  • Diamond’s clarity grade: IF
  • Diamond’s cut grade: very good
  • Metal: white gold

Blue Nile Classic Four-Prong Solitaire 0.51-Carat Radiant-Cut Ring in White Gold is your best choice for a beautiful, clean-looking ring. The ring has a slim silhouette, 14-karat white gold, and finish that gives its timeless look. It looks great with its high-quality 0.51-carat radiant-cut diamond. 

The diamond has a rare quality even though it only has a 0.51-carat weight. The color grade is colorless, and the clarity grade is internally flawless, the reason for its clean-looking appearance. Although the clarity grade is not flawless throughout, the IF grade is more than good enough because it only tells that it has no internal imperfections, which is still rare on the market.

The cut grade is ‘very good.’ It does not shimmer as the diamonds with an Astor Ideal or Ideal grades. However, the radiant cut and the four-prong solitaire design compensate for it. 

Thus, it is not surprising that this ring is expensive compared to other solitaire diamond rings with a higher carat weight but lower in quality. 

ProsCons
14-karat white gold
Not the best cut grade
Internally flawless
Expensive
Clean-looking
Colorless

#6. Blue Nile Wide Band Solitaire 1.60-Carat Radiant-Cut Ring in Platinum

Blue Nile Wide Band Solitaire1.60-Carat Radiant-Cut Ring in Platinum

 

Specifications: 

  • Diamond’s carat-weight: 1.60
  • Diamond’s color grade: D
  • Diamond’s clarity grade: VVS2
  • Diamond’s cut grade: very good
  • Metal: platinum

Blue Nile Wide Band Solitaire 1.60-Carat Radiant-Cut Ring in Platinum does not fail if you are one of those who believe that an engagement ring should be as expensive as it should be. Although its price is not as high as those diamonds with more than 2-carat weight, buying this ring will surely show how willing and serious you are to be committed to your partner. 

This solitaire ring is unique. It is unlike most engagement rings that have a slim shank. This one has a modern and bold design with a flat profile that will surely put your expensive diamond into focus. 

The diamond is a large chunk, which can already draw eyes on it. It has the highest color grade. The cut grade is very good, and the clarity grade is VVS2, which is not the best but is still considered high-quality.  

Although it may be a pricey engagement ring, for now, this ring can make an excellent family heirloom, so that future generation will not have to spend a dime when proposing. 

ProsCons
Inclusions are invisible to the naked eye. Does not shimmer as good as the ones with Ideal or Astor Ideal rating
A large chunk of diamond
Expensive
Unique ring design
Colorless

#7. Blue Nile Petite Solitaire 1.16-Carat Heart-Shaped Ring in Rose Gold

Blue Nile Petite Solitaire1.16-Carat Heart-Shaped

 

 

 

 

 

 

 

 

Specifications: 

  • Diamond’s carat-weight: 1.16
  • Diamond’s color grade: D
  • Diamond’s clarity grade: IF
  • Diamond’s cut grade: very good
  • Metal: rose gold

Blue Nile Petite Solitaire 1.16-Carat Heart-Shaped Ring in Rose Gold is the best choice if you are looking for an unconventional engagement ring design. It is unconventional because a heart-shaped diamond is not a popular choice for engagements. However, the rose gold metal band is trending nowadays. 

Aside from the diamond’s sweet heart-shaped, you will love its quality. 

The diamond is internally flawless, which is a rare diamond characteristic. It is also colorless. Because of this, the gemstone is clean-looking, which will look good in a rose gold shank. 

The petite solitaire is a 14-karat rose gold, which will frame the beauty of the heart-shaped diamond. 

ProsCons
Modern, unconventional design
Does not shimmer as good as the ones with Astor Ideal and Ideal cut grade
A large chunk of diamond
14-karat rose gold
Internally flawless
Colorless

#8. Blue Nile Classic Comfort Fit Solitaire 0.61-Carat Marquise Ring in White Gold

Blue Nile Classic Comfort Fit Solitaire0.61-Carat Marquise Ring in White Gold

 

 

 

 

 

 

 

 

 

 

Specifications: 

  • Diamond’s carat-weight: 0.61
  • Diamond’s color grade: D
  • Diamond’s clarity grade: IF
  • Diamond’s cut grade: very good
  • Metal: white gold

If your partner has short fingers, your beloved will love the Blue Nile Classic Comfort FIt Solitaire 0.61-Carat Marquise Ring in White Gold. Because of the Marquise-cut of the diamond ring, it gives an illusion of elongation to your beloved’s fingers.

The ring has a simple design with rounded edges inside to provide comfort. The head has six prongs that secure the diamond in place. 

Aside from the diamond’s beautiful design, it also has an excellent rare quality. It is colorless and internally flawless. There are a few blemishes, but it is only on the outside and not visible to the naked eye. 

The ‘very good’ cut grade is not the best, but still good enough. Besides, it can easily be ignored if the extra shimmer is not your main priority. 

ProsCons
14-karat white goldDoes not shimmer as good as the ones with Astor Ideal and Ideal cut grade
Internally flawless
Comfortable fit
Colorless

Top Pick

This review’s top pick is the Blue Nile Petite Cathedral Solitaire 1.07-Carat Radiant-Cut Ring in  Platinum. It has the beauty, quality, and shimmer that your partner will love. It’s four Cs’ characteristics are almost perfect, one reason for its expensive price.

Although this diamond ring is pricey, it is worth it and still affordable for many people. 

The clarity and color grades are rare. It is colorless and flawless, the qualities that will help it shine more brilliantly. 

Although the cut grade is not the highest, the ‘very good’ cut grade is still at the high spectrum of a high-quality diamond. 


Best Solitaire Diamond Ring Brands 

You can find more stunning solitaire diamond ring selections from the following brands if you think none of the mentioned rings will satisfy your partner’s preference. The Blue Nile and James Allen are the leading brands of online jewelry shops, and both are reputable.

Because of their renowned reputation, you can trust that neither of them will try to dupe you. These brands have a name to protect. 

What makes these brands even more amazing is that they allow you to customize your ring.

Blue Nile

The Blue Nile started when Mark Vadon acquired the 85 percent share of a jewelry company where he bought a diamond ring. He improved the company’s website and later changed it to the Blue Nile in 1999. 

Now, the company lives under its customer-first philosophy. That is to offer high-quality jewelry and diamonds at the best value. It believes that customers deserve straightforward information, exceptional services, and a wide range of diamond choices. 

Aside from the name, there are more reasons to trust this brand. First, Time Magazine ranked the Blue Nile as one of the Best Websites for Business, deeming it the Best Indulgence. Second, it is 1 of the only 20 that received the Circle of Excellence Platinum Award from Bizarre.com. 

James Allen

Oded Edelman, Michele Sigler, Dean Lederman, and James Schultz founded James Allen in 2006 with their total of 60 years of experience. This company currently has offices in America’s three states: New York, Maryland, and Washington DC.

James Allen is one of the online jewelry shops that revolutionize the way customers shop jewelry online. It claims to be the only retailer that features 360-degree HD of magnified images for over 200,000 products. It is also the first one to offer a real-time diamond inspection service.

James Allen works on the mission to offer customers a wide selection of high-quality diamonds at the best price.

Like the Blue Nile, James Allen has proven its reputation in the industry. Big retailers like Tiffany & Co. trust James Allen, working as their manufacturer. James Allen also won the Circle of Excellence in 2018.


Is the Solitaire Diamond Ring the Best Choice?

Diamond solitaire refers to a ring’s design that contains only one diamond commonly supported by prongs, which can be flat, rounded, or pointed. The prongs support the ring in place no matter what the diamond’s size is. 

There are no additional gemstones and diamonds on the sides or around the central stone, making the only gemstone the main focus. 

This design is one of the most classic designs that has been around for several years. This style applies not just to the ring but also other types of jewelry. 

Solitaire design is versatile for any occasion, not just engagement. It goes well for people looking for a classy but simple style that can go with any outfit.

What makes a diamond solitaire an ideal choice is its timeless and classic appearance that allows the diamond to be noticeable. It is also easy to clean and maintain. This design allows abundant amounts of light to reflect on the ring to increase its brilliance. 

This style can accommodate any gemstone’s sizes and shapes.

The problem with it is that it elevates the stone. It is not the best choice for people with an active lifestyle because of the possibility of getting it snagged to different things around you. 

Also, the prongs loosen in time. That is why if you are considering buying a solitaire diamond ring, make sure to have it inspected every two years. 


Different Solitaire Diamond Engagement Ring Settings

Although diamond solitaire is the simplest among the other ring styles, it has different settings that may vary depending on the prong’s design, layout, and arrangement. 

Four or Six Prongs

The setting can have four or six prongs that extend from the band to support the gemstone and secure it in place.

Split Shank

There are shanks on both sides that split in two to support the center diamond and enhance the presence and focus.

Tiffany

It is a famous solitaire design by Tiffany & Co. It has six prongs that aim to allow abundant amounts of light to reach the diamond for more brilliance. It also uses a knife-edge to add more shimmer. 

Cathedral

The cathedral is also known as a high-profile setting. It is an arched design that resembles a cathedral. The center diamond is elevated as if it is floating on the band.

Knife-Edge

This design draws attention to the diamond because of the angular and pointed appearance that reaches the center diamond. 


Factors to Consider When Buying the Best Solitaire Diamond Ring

The best ring should be based on personal choice, specifically, your partner’s preference and budget. For some people, the best can be the cheapest one on the market, while others believe it should be as expensive as they can afford.

It does not mean that you can pick just anything from the store. After all, even the cheapest can still cost a serious amount of money. That is why you want to make sure to make the most out of its value. 

Knowing the following considerations can greatly help when you shop for the best solitaire diamond ring. 


Diamond’s Characteristics

Diamonds are unarguably expensive. That is why its quality should be the first of your considerations. 

GIA’s way of assessing diamonds can help you determine the characteristics that you think your partner will appreciate. GIA created this global standard to assess the diamond’s quality. These criteria are also known as the four Cs that stands for color, cut, clarity, and carat weight. 

The color grading ranges from D to Z, where the D is the best and represents the colorless characteristic. 

The cut is an essential factor of assessment because it plays a major role in how a diamond reflects light to the eyes. 

As for clarity, the flawless grade is the most ideal and rare. It shows that the diamond is free from imperfections, such as inclusions. 

The diamond’s carat weight is directly proportional to the diamond’s size. Commonly, the higher the carat weight is, the more expensive the diamond is. 

You might think that the best diamond has the highest carat and grade for the cut, color, and clarity. Although it can be true, diamonds that have these characteristics are non-existent. If they do, these will be extremely expensive and unaffordable for billions of people. 

Aside from that, you should also consider the shapes of the diamond. The number of facets greatly affects the diamond’s ability to reflect light. That is why you should consider the best diamond cut that your partner will love. 

Examples of these cuts are princess, radiant, cushion, etc.

Band Metal

The band metal affects the overall appearance of the ring. The common metals used are platinum and white gold, although yellow gold also exists. Also, rose gold is a trend nowadays. 

You should also consider the color that goes along well with the band’s color. For example, white metal prongs go well with gold. 

Setting

Gemstones stay securely in place on a piece of jewelry because of the setting. Make sure to choose the one that goes well with your partner’s lifestyle. If your partner is always active, stay away from the setting that puts the gemstone at risk of loss. 

Partner’s Lifestyle

Your partner’s lifestyle plays a role in choosing the best ring for your partner. You should consider your beloved’s profession and favorite activities.

For example, if your partner is a surgeon, you know that your beloved should take the ring off from time to time. In this case, you should choose a not-overly expensive ring. 

If your partner loves engaging in messy activities, you should choose the setting that allows easier cleaning. 

Partner’s Sense of Style

Your partner’s sense of style also plays a role when considering the best ring to buy. 

Find out your partner’s favorite jewelry and its style. Observe the cut and the type of gemstone. 

It will also help if you observe your partner’s taste in clothing. Find out what is the best ring that goes well with it. Your partner’s personality also plays a role. 

The simple solitaire ring will fit those people who prefer simplicity and elegance. 

Ring Size

The last thing you would want to happen is to humiliate yourself in front of your partner and the audience by presenting a ring that does not fit. Make sure to find the right size before buying one. 

Suppose you do not want your partner to know of your ring shopping plans. You can learn the ring size by borrowing a ring from your partner. You can figure out the rings’ size by basing on the ring sizing chart available in any jewelry store, by pushing it on clay or soap, or by finding a friend that has your beloved’s finger size.

You may also tie a string around your sleeping partner’s left ring finger. 

Budget

Unless you are filthy rich, the budget is the utmost consideration in figuring out the best diamond that goes within your price range. 

Remember not to get yourself into debt just because you want the most expensive jewelry for your beloved. The last thing you would like to happen is to be in debt and drag your partner into it after marriage. 


Conclusion 

The best solitaire diamond ring should be authentic enough to last a lifetime. Most of all, it should have the characteristics that your partner will appreciate based on your beloved’s taste and lifestyle. 

That is why this review aims to help you pick the best solitaire diamond ring by listing the examples of high-quality rings that you can select from. One of them is the Blue Nile Petite Cathedral Solitaire 1.07-Carat Radiant-Cut Ring in Platinum.

However, you can only pick the best if you know your partner’s ring size and lifestyle and by balancing the diamond’s quality and your budget. 


FAQs (Frequently Asked Questions)

What Is the Best Solitaire Diamond Ring

Generally, a diamond ring to purchase should be authentic. You should buy from a reputable store and ask for a certificate. However, The best diamond ring is your partner’s preference. The carat weight is not the only measurement of the diamond’s quality, and the other Cs are also important. It will help if you choose based on your partner’s fashion taste, finger size, and lifestyle. Even if the ring costs a million dollars, there is no way your partner can wear it if it doesn’t fit or if she loses it. 

How to Differentiate a Real Diamond From the Fake One?

There are a few ways to test the authenticity of a diamond. First is through a magnifying glass. Real diamonds have imperfections that are visible at 10x magnification. Although there are diamonds that do not have imperfections, they are rare and expensive. The second is by dropping it on a glass of water. The diamond’s high density should allow it to sink. The third is by blowing on it as you do to a mirror. Real diamonds do not allow condensation to form, so you should not see any fog when you blow on them. 

Should the Diamond for Engagement Be Expensive?

It depends. If you can afford it and if you are willing to splurge, why not? However, if you do not have the budget, you should go for the price you can afford. A partner who loves you will appreciate it more if you give a ring out of thoughtfulness. The last thing that your partner will appreciate is an instant debt obligation after marrying you. The rumor that the cost should equal the two months of your salary is a bluff made by diamond retailers to encourage you to spend more. 

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