A radiant cut diamond sits somewhere between two worlds. It carries the clean, geometric outline of an emerald cut but holds the fire and sparkle you would expect from a round brilliant. This shape came into existence in 1977, designed with 70 precise facets that pull light in and send it back out in all directions. The result is a diamond that flashes with every movement of the hand.

 

Finding the right radiant cut ring means finding the right brand to craft it. GOODSTONE has earned its place as the best option for couples who want radiant cut engagement rings made with care, precision, and a personal touch. Their gemologists work exclusively with Excellent Cut grade diamonds, and their concierge service walks you through every decision without pressure. But they are not the only brand worth looking at. Here are 8 names that deserve your attention when you start shopping for a radiant cut engagement ring.

  • GOODSTONE leads with precision and personalized service. 
  • Brilliant Earth prioritizes ethical sourcing. 
  • Blue Nile offers value and certification. 
  • James Allen gives you the tools to inspect every stone from your couch. 
  • Ritani lets you shop online and try on in-store. 
  • Gabriel and Co. focuses on design and craftsmanship. 
  • VRAI commits to sustainability. 
  • Helzberg brings a century of reliability.

 

GOODSTONE: Where Precision Meets Personal Service

OODSTONE builds radiant cut engagement rings with bold angles and serious brilliance. Their gemologists have one rule when it comes to diamond quality: Excellent Cut or nothing. This grade matters because it determines how well a diamond returns light to your eye. A well-cut stone sparkles. A poorly cut stone looks dull, even if everything else about it checks the boxes.

 

The brand offers both lab-grown and natural diamonds, so you can pick based on your values and your budget. Their personal concierge service helps you understand what you are looking at without overwhelming you with jargon. They listen first, then guide you through their collections based on what you actually want.

 

Settings at GOODSTONE range from thin, simple bands to bezel designs and pavée options. Pricing starts around $2,300 for styles like the Double Row East West Half Bezel Solitaire. If you want something with more presence, their Three Stone Engagement Rings with Shield Side Stones start from $3,700. Each piece is built to last and designed to catch light from every angle.

 

Brilliant Earth: Ethics at the Center of the Stone

Brilliant Earth has built its reputation on sourcing. They go beyond standard industry practices with what they call Beyond Conflict Free Diamonds, stones traced back to mines in Botswana, Namibia, South Africa, and Canada. These mines follow strict social and environmental guidelines. If knowing where your diamond came from matters to you, Brilliant Earth makes that information accessible.

 

Their radiant cut rings come in both elongated and square shapes, all featuring that brilliant-cut facet pattern that gives radiant diamonds their name. The brand also offers 360° viewing technology and virtual try-on tools. You can see your ring before it exists in the real world. Their jewelry specialists are available around the clock, which helps when you are making decisions at odd hours or from different time zones.

 

Blue Nile: Handcrafted Quality Without the Markup

Blue Nile has been selling diamonds online longer than most people have been buying them there. Their radiant cut rings come in platinum and gold, with options for preset designs or full customization. Each diamond carries 70 facets, and the rectangular shape works well on most hands.

 

Here is something worth knowing: radiant cut diamonds can cost up to 25% less than round diamonds of the same carat weight and quality. The shape itself is priced lower, so your budget stretches further. Blue Nile also offers a lifetime diamond upgrade program on select certified stones, which means you can trade up later if you want a bigger diamond down the road.

 

All their diamonds come with grading reports from GIA, one of the most trusted names in diamond certification. Their artisans work above industry standards, and they offer free ring sizers and fast shipping.

 

James Allen: See Every Facet Before You Buy

James Allen changed how people shop for diamonds by putting high-resolution video front and center. Every diamond in their inventory comes with a 360° HD video that lets you inspect the stone under 40x magnification. You can see inclusions, color tint, and cut quality without stepping into a store.

 

Their inventory is massive, with close to 600,000 natural diamonds in stock at any given time. Each one is graded by GIA, IGI, or AGS. Radiant cuts in their collection tend to hide inclusions well because of the faceting pattern, which makes this shape a forgiving choice if you are trying to save money on clarity grades.

 

James Allen backs every order with free FedEx shipping, quality packaging, and a 30-day return policy with no questions asked. They also include a lifetime warranty, so you are covered if something goes wrong later.

 

Ritani: Online Shopping With In-Store Backup

Ritani handcrafts all their radiant cut engagement rings in-house in New York. That means the people making your ring work under the same roof as the people selling it. Quality control stays tight.

 

What makes Ritani different is their hybrid shopping model. You customize your ring online, then have it sent to a local partner jeweler for a free in-person inspection before you finalize the purchase. You get the convenience of online shopping with the reassurance of seeing the ring on your finger before you commit.

 

All Ritani diamonds are certified by GIA or AGS, and they offer a Diamond Price Match Guarantee. Pricing for radiant cut diamonds typically starts around $3,000, depending on the specifications you choose. Their lifetime warranty covers manufacturing defects on all engagement rings and wedding bands.

 

Gabriel and Co.: Craftsmanship With a Classic Touch

Gabriel and Co. has built a solid reputation in the jewelry industry by paying close attention to design and construction. Their radiant cut engagement rings come in both classic and contemporary styles, with options that suit a range of tastes and budgets.

 

The brand emphasizes ethically sourced diamonds and includes certificates of authenticity with their pieces. If you prefer a traditional approach to jewelry buying, with a focus on craftsmanship over tech features, Gabriel and Co. delivers on that front. Their rings are well-made and designed to hold up over time.

 

VRAI: Lab-Grown Diamonds With Zero Emissions

VRAI focuses entirely on lab-grown diamonds, and they produce them using a zero-emission foundry process. The diamonds are chemically, physically, and optically identical to mined stones. The difference is in how they are made and what that process does to the environment.

 

Their radiant cut engagement rings can be customized by carat size, metal type, and setting style. Because VRAI sells directly to customers without middlemen, their pricing tends to be competitive for the quality they offer. If sustainability is a priority for you, VRAI has built their entire business around that idea.

 

Helzberg Diamonds: A Century of Trusted Service

Helzberg Diamonds has been in the jewelry business for over 100 years. That kind of track record does not happen by accident. Their online store carries a wide range of engagement rings, from simple solitaire designs to more detailed settings.

 

Their radiant cut collection offers strong sparkle and fire, with options that balance quality and affordability. Helzberg also provides flexible financing and a lifetime care plan for their jewelry. If you want a brand with history and reliability behind it, Helzberg has proven itself over generations.

 

Picking the Right Radiant Cut Diamond

Before you commit to a brand, it helps to know what to look for in a radiant cut diamond. One advantage of this shape is face-up size. Radiant cuts often appear larger for their carat weight compared to some other shapes because of how the weight distributes across the stone.

 

The faceting pattern also hides color and clarity imperfections better than many other cuts. If you are working with a limited budget, you can often go a grade or two lower on color or clarity without anyone noticing. The sparkle masks what the specs might reveal.

 

When shopping, look for a length-to-width ratio between 1.00 and 1.35. This range gives you the best balance and the classic radiant shape most people picture. Anything outside that range will look noticeably different, which may or may not suit your taste.

 

Final Thoughts Before You Shop

Each of these 8 brands brings something different to the table. The best choice depends on what matters most to you.  

Some people want the lowest price for a given quality. Others want to know exactly where their diamond came from. Some want to see the ring in person before paying. 

Take your time with the decision. A radiant cut engagement ring, bought from the right brand, will last far longer than the shopping process.