Shown in 1.25 carat Blue Diamond
Shown in 1.25 carat Blue Diamond* The Hadley Marquise Blue Diamond Engagement Ring | Lisa Robin
Shown in 1.25 carat Blue Diamond
Shown in 1.25 carat Blue Diamond* The Hadley Marquise Blue Diamond Engagement Ring | Lisa Robin
Shown in 1.25 carat Blue Diamond
Shown in 1.25 carat Blue Diamond* The Hadley Marquise Blue Diamond Engagement Ring | Lisa Robin
Shown in 1.25 carat Blue Diamond
Shown in 1.25 carat Blue Diamond* The Hadley Marquise Blue Diamond Engagement Ring | Lisa Robin
Shown in 1.25 carat Blue Diamond* The Hadley Marquise Blue Diamond Engagement Ring | Lisa Robin
Shown in 1.25 carat Blue Diamond* The Hadley Marquise Blue Diamond Engagement Ring | Lisa Robin
Shown in 1.25 carat Blue Diamond* The Hadley Marquise Blue Diamond Engagement Ring | Lisa Robin
Shown in 1.25 carat Blue Diamond* The Hadley Marquise Blue Diamond Engagement Ring | Lisa Robin
Engagement Rings

The Hadley Marquise Blue Diamond Halo Engagement Ring

The Hadley is a blue diamond engagement ring with an elongated marquise center wrapped in a shape-matching halo. As a blue diamond halo engagement ring with directional structure, it carries the marquise's distinctive form and the depth of a colored center across every line of the ring.
$ 3,295.00
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The Hadley stretches a marquise blue diamond along its length and rings it in a halo shaped to that silhouette — the pointed ends drawing the eye outward, the halo pulling a line of cool white brilliance tight around the color. A marquise carries color across its long face better than almost any shape, so the blue reads deep and unmistakable.

Metal Options 14K Yellow Gold, 14K White Gold, 14K Rose Gold, or Platinum. Sustainably sourced.
Setting Diamond Total Weight 1.26 carat
Setting Diamond Quality Lab grown VS-SI1, E-F-G
Style blue diamond halo engagement ring
Setting Six rounded prongs
Band 1.20mm to 2.3mm
Setting Height Medium
Band Profile Tapered with cathedral support beneath halo
Crafting Time Approximately 3-4 weeks

Setting starts at $3,295. Paired with a 1 carat lab grown blue diamond center, the Hadley Marquise Blue Diamond Halo engagement ring starts at approximately $4,195.

How does the Hadley Marquise Blue Diamond Halo differ from the white diamond version?

The architecture is the same — a marquise center wrapped in a shape-matching cluster halo on a band that tapers from 1.20mm to 2.3mm. The difference is the center: a fancy blue marquise diamond rather than a colorless one. The halo of white accent diamonds frames the blue and makes the color read stronger by contrast.

What does a shape-matching halo add to a blue diamond marquise engagement ring?

The halo follows the marquise outline, and because it's formed from round accent diamonds, its perimeter gently undulates with their curves rather than forming a straight pavé-type edge. That amplifies the diamond's elongated shape and adds surface area without blunting its points. Around a fancy blue center, the white halo both enlarges the look and deepens the blue through contrast — luminous from every angle while keeping the marquise's distinctive proportion.

When does a marquise halo setting make sense for a blue diamond engagement ring?

It makes sense when you want maximum presence and want the elongated marquise shape emphasized. The shape-matching halo adds size and a white-diamond frame that intensifies the blue, so it's a strong choice if you're drawn to a bold, luminous look rather than a single unframed marquise.

Our guided approach to customizing each ring with intention and clarity.

Every Lisa Robin ring is made to order, which means your design can be thoughtfully refined—even when ordering online. Whether you’re adjusting a detail or evolving the design, we guide you through each decision to ensure the final piece feels cohesive and entirely yours.

Design Refinements can be explored after your initial order, with any pricing adjustments clearly outlined and approved before crafting begins.

Refinement options include but are not limited to:

  • Adjusting the width or taper of the band (shank)
  • Modifying or adding side diamonds for additional detail or presence
  • Changing the prong style (claw, round, double prong, etc.)
  • Adjusting the number of prongs for both aesthetic and structure
  • Refining the basket design for a different profile or overall look
  • Selecting your preferred metal type and color
  • Adapting the design to better coordinate with a wedding ring
Made to order — Your diamond engagement ring ships in 3-4 weeks, approximately Aug 19 to Aug 23
Shipping costs calculated at checkout

The Hadley Marquise Blue Diamond Halo Engagement Ring

A marquise diamond is one of the most directional shapes in jewelry, and a halo built to match its outline reinforces that direction rather than fighting it. Some colors carry weight. Blue, especially in a diamond, is one of them.

The Hadley is a blue diamond engagement ring built around the marquise center's elongation — the round accent diamonds in the halo follow the marquise outline, extending the shape rather than confining it within a circle. The blue at the center reads as depth stretched across the diamond's full length: reads cool against white gold and platinum, steady against yellow gold. As a colored diamond engagement ring with directional structure, the Hadley Blue Diamond catches light continuously while preserving the marquise's distinctive shape — the blue runs the length of the diamond, framed but not interrupted.

Wear it as a ring whose direction is part of the design. The Hadley Blue Diamond joins a Lisa Robin tradition of halo engagement rings and colored diamond engagement rings designed for couples drawn to elongated form and directional light.

The Hadley Marquise Blue Diamond Halo Engagement Ring
The Hadley Marquise Blue Diamond Halo Engagement Ring

Design Process

How Lisa Robin Designs Your Diamond Engagement Ring

A thoughtful process designed to bring clarity and confidence to the creation of your ring.

Online Ordering

Begin your custom engagement ring through a guided online experience designed to bring clarity to each decision. From understanding diamond shapes to exploring engagement ring settings, the process is supported by in-depth educational resources throughout the site.

If you’d like to personalize your design, you can place your order at any time—we’ll follow up to refine the details and ensure everything aligns with your preferences.

Private Design Appointments

For a more collaborative experience, work with us one-on-one, either in person or virtually. Your engagement ring consultation is tailored to you—we guide you through each decision in real time, shaping your diamond engagement ring with clarity and intention.

Compare diamonds sourced from trusted suppliers around the world through the Lisa Robin Global Diamond Collection.

As you explore your engagement ring, you can review available diamonds by shape, proportions, and overall presence to select the one that best complements your design.

This approach gives you access to a broader range of diamonds, allowing your selection to align more precisely with your design, priorities, and budget.

We guide you through how each diamond interacts with your setting—so the final engagement ring feels balanced, intentional, and cohesive.

Both natural and lab-grown diamonds are available, giving you the flexibility to choose what feels right for you.

Before your ring is hand-crafted, you’ll review detailed CAD renderings created using your diamond’s exact dimensions.

Multiple views allow proportions, balance, and design details to be carefully considered—so you can feel confident in how your engagement ring design will come together before crafting begins.

If a wedding ring is selected within the same order, renderings will also show each ring individually and together, helping you understand how they pair and flow as a set.

Once your design is approved, your ring is hand-crafted specifically for you using carefully selected materials and ethically sourced diamonds.

Each ring is a made to order engagement ring, typically completed in approximately three weeks.

You can choose secure, fully insured shipping or private studio pickup. Throughout the process, we remain available to guide you—so you always know what to expect at every stage.

What our customers say about their Lisa Robin Engagement Rings

I loved working with Lisa Robin! It was so easy to create exactly what I wanted. With some minor changes to Lisa's gorgeous styles, I had the perfect wedding ring to coordinate with my Lisa Robin Engagement Ring. Can’t wait to add another ring to my stack.

Abby and Zane
Blountville, Tennessee

Our experience with Lisa Robin was delightful. We found our Lisa Robin engagement ring Instagram and then picked out and bought our wedding rings online. Every question we had was answered quickly. Lisa made us feel special and guided us in the right direction. When we got our rings, they were just what we wanted, expressing our style and love perfectly. We are so happy with how everything turned out.

Mary Katherine and Adam
Columbus, Ohio

Find Your Matching Wedding Band

Gloriously stacking the Hadley and two Claire wedding rings, one top and one bottom.

The Claire Marquise Diamond Open Wedding Ring | Lisa Robin#color_10k-yellow-gold
Claire Marquise Diamond Open Wedding Ring
The Gabby Diamond Curved Wedding Ring | Lisa Robin#color_10k-yellow-gold
The Gabby Diamond Curved Wedding Ring

FAQ For Diamond Engagement Ring

Yes. Every design can be guided online from start to finish. Once you select your diamond and preferred setting, we provide personalized guidance and create detailed renderings using your exact diamond before hand crafting begins.

Confidence comes from proportion. We review scale, finger size, and structural details together. Detailed renderings created with your selected diamond allow you to evaluate balance and presence before your ring is crafted.

Yes. You select the exact diamond. Whether ordering online or during a private appointment, your chosen diamond is secured first and used to create your design renderings.

Absolutely. You will receive realistic CAD renderings created with your selected diamond, allowing you to review proportions, orientation, prong style, and structural details before approving your ring for hand crafting.

The outcome is the same — a fully guided design process.
• Online: structured guidance through curated options and digital review
• Appointment: in-person discussion with hands-on comparison and proportion review
•Both approaches are intentional and equally supported.

Each design shown is intentional and ready to be crafted. You may personalize metal, diamond, proportions, and select structural refinements. The foundation is design-led; the final ring is crafted specifically for you.

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