The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
Shown in 1.65 Total carat Weight
Shown in 1.65 Total carat Weight * The Mercer Half Eternity Emerald Cut Diamond Wedding Ring | Lisa Robin_total_carat_weight-1.65-cttw
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
Shown in 1.65 Total carat Weight
Shown in 1.65 Total carat Weight * The Mercer Half Eternity Emerald Cut Diamond Wedding Ring | Lisa Robin_total_carat_weight-1.65-cttw
Shown in 1.65 Total carat Weight
Shown in 1.65 Total carat Weight * The Mercer Half Eternity Emerald Cut Diamond Wedding Ring | Lisa Robin_total_carat_weight-1.65-cttw
Shown in 1.65 Total carat Weight
Shown in 1.65 Total carat Weight * The Mercer Half Eternity Emerald Cut Diamond Wedding Ring | Lisa Robin_total_carat_weight-1.65-cttw
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring - Lisa Robin
Shown in 2.88 Total carat Weight
Shown in 2.88 Total carat Weight * The Mercer Half Eternity Emerald Cut Diamond Wedding Ring | Lisa Robin_total_carat_weight-2.88-cttw
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring

The Mercer Half Eternity Emerald Cut Diamond Wedding Ring

The Mercer is a half eternity emerald cut diamond wedding ring with 1.3 carat of step-cut diamonds across the top of a 3.8mm high-profile band. A half eternity emerald cut band — geometric clarity in the visible portion, solid metal underside for resizing.
Regular price$ 2,195.00
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Diamond
Total Carat Weight

The Mercer places emerald cut diamonds across the top portion of a 3.8mm high-profile band, leaving the underside in solid metal. The step-cut geometry of each emerald cut diamond reads clearly across the band — long rectangular outlines in continuous rotation across the top, producing planar brilliance rather than scintillating fire.

As an emerald cut diamond wedding ring with half eternity construction, the Mercer combines the geometric character of an emerald cut eternity band with the practical advantages of a partial band — resizing capability and reduced cost per visible diamond.

Metal Options 14K Yellow Gold, 14K White Gold, 14K Rose Gold, or Platinum. Sustainably sourced.
Setting Diamond Total Weight 1.3 carat
Setting Diamond Quality Lab grown VS-SI1, D-E-F
Style Half eternity emerald cut diamond wedding ring
Setting Prong, diamonds across top half only
Band 3.8mm
Setting Height High
Band Profile High
Crafting Time Approximately 2-3 weeks

The Mercer Half Eternity Emerald Cut Diamond Wedding Ring starts at $2,195 in 14K gold with lab grown diamonds.

Why choose a half eternity emerald cut over a full eternity band?

A half eternity ring carries diamonds across the visible top portion of the band while leaving the underside in solid metal. For emerald cut diamond wedding rings specifically, the half eternity construction lets you wear the step-cut geometric character — the same visible look as a full eternity band from the wearing angle — while preserving the option to resize the ring later and keeping the cost lower per diamond. Most buyers can't tell a half eternity from a full eternity in normal wear or photography.

What's the difference between the Mercer and the Aniston?

Both rings use prong-set emerald cut diamonds. The Aniston is a full eternity band (5 carat, diamonds around the full circumference) at 4.25mm wide. The Mercer is a half eternity ring (1.3 carat, diamonds across the top only) at 3.8mm wide. The Mercer's high-profile band gives the diamonds more visual presence per stone; the Aniston spreads more diamonds across a slightly wider band. The Mercer is resizable in the future; the Aniston is not.

What does 'high profile band' mean for a wedding ring?

Band profile refers to how high the ring sits off the finger — low, medium, or high. A high-profile band like the Mercer's 3.8mm band raises the diamonds further above the finger surface, which gives each stone more visual presence and lets more light reach the diamond from below. The trade-off is that high-profile rings sit more prominently on the finger and can catch on fabric more easily than low-profile rings. For emerald cut diamonds specifically, the high profile lets the step-cut facets read clearly from multiple angles.

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 Ships Jun 15 to Jun 22
Shipping costs calculated at checkout

The Mercer Half Eternity Emerald Cut Diamond Wedding Ring

Half eternity is the construction that gives you the look of an eternity band with the practicality of a partial band. For an emerald cut wedding ring, that practicality matters.

The Mercer places 1.3 carat of emerald cut diamonds across the top portion of a 3.8mm high-profile band. The visible portion — the part you see when looking down at the ring — reads as a full eternity band: continuous step-cut geometry, no metal between stones. The underside stays in solid metal, which means the ring can be resized when fingers change over the years and which keeps the cost lower than a full eternity equivalent. The high-profile band raises the diamonds for more visible presence per stone. In white gold or platinum the step-cut geometry reads sharpest; in yellow gold the warm metal softens the architecture. As an emerald cut diamond wedding ring in half eternity construction, the Mercer is the practical version of an emerald cut eternity band.

The Mercer joins a Lisa Robin tradition of emerald cut diamond wedding rings designed for couples drawn to step-cut geometry and lifelong practicality.

Design Process

The Lisa Robin Wedding Band Experience

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

At a certain point, continuing to search for a wedding band doesn’t make the decision clearer—it just makes it harder.

Our collection is intentionally edited to help you recognize when you’ve found the right direction. Each wedding band design reflects a distinct point of view, with proportions and details that set it apart from what you’ve likely been seeing online.

When something here resonates, the decision tends to feel clear.

From there, we guide you in refining the details to align the design with your preferences.

Once you’ve chosen your wedding band, you’ll select the core elements that define the design:

  • Metal type
  • Natural or lab-grown diamonds (if applicable)
  • Finger size
  • Optional engraving

If your wedding band will be worn alongside an engagement ring, we can help you evaluate how the proportions and overall profile will sit together and feel over time.

These decisions are focused and straightforward—so you can move forward with clarity.

If you’d like to adjust your diamond wedding ring, we guide you through a thoughtful refinement process—ensuring any changes support the overall balance and feel of the design.

Common refinements may include:

  • Adjusting band width or profile
  • Refining diamond size or spacing
  • Subtle modifications to improve pairing or wearability

Each change is considered within the context of the full design, so the final ring feels cohesive and intentional from every angle.

For custom refinements, we provide renderings for review before crafting begins—so you can move forward with complete confidence.

Every custom wedding band is hand-crafted to order based on your final selections.

  • Crafted specifically for your chosen design and refinements
  • No pre-made inventory or resizing shortcuts
  • Typical timeline: 2–3 weeks

If additional clarity is helpful before crafting begins, we can guide you through the next steps to ensure everything feels aligned.

What our customers say

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

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.