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 - 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 * 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 * The Mercer Half Eternity Emerald Cut Diamond Wedding Ring | Lisa Robin_total_carat_weight-1.65-cttw
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 * 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 * 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
Diamond Wedding Rings

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.
$ 2,195.00
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Color
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 details
  • Adding gemstones or diamonds
  • Selecting your preferred metal type and color

Made to order Ships Aug 15 to Aug 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.

The Mercer Half Eternity Emerald Cut Diamond Wedding Ring
The Mercer Half Eternity Emerald Cut Diamond Wedding Ring

Design Process

The Lisa Robin Wedding Band Experience

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

Our collection is intentionally edited — 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

Diamond Wedding Rings — Frequently Asked Questions

A full eternity wedding band carries diamonds around the entire circumference (top, sides, and underside). A half eternity wedding band carries diamonds only across the visible top portion (typically 180 degrees), leaving the underside in solid metal. The half eternity offers two advantages: it can be resized in the future (full eternity cannot, because the continuous diamonds prevent cutting through the band), and the solid metal underside is smoother against adjacent fingers. From the wearing angle looking down at your hand, a half eternity and full eternity look nearly identical. Half eternity bands typically cost 30-40% less than full eternity bands due to fewer diamonds.
Yes. Standard accent diamond quality on our wedding rings is VS-SI1 clarity in E-F-G color — high quality but not the maximum. You can specify higher quality (VVS clarity, D-E-F color) at increased pricing, or lower (SI1-SI2 clarity, H-I-J color) for cost reduction. For most accent diamonds in wedding bands (which are typically 0.01-0.05 carat each), the visual difference between standard and higher grades is minimal because the diamonds are too small to show visible inclusions or color tint. Most couples select the higher quality for engagement ring center stones rather than for wedding band accents. We discuss diamond quality during the design conversation.
Diamond wedding band carat weights vary significantly by design. Narrow pavé bands (1-1.5mm wide) carry 0.10-0.30 carat total weight. Standard half eternity bands carry 0.50-1.00 carat total weight. Full eternity bands carry 1.00-2.50 carat total weight depending on diamond size. Statement diamond wedding bands (like the Gabby at 0.90 carats) carry significant individual diamond weight. The choice depends on visual presence preference and budget — more carat weight produces more diamond brilliance and higher cost. Specific carat weights for each design are listed on the individual product pages.
Yes. Lab grown diamonds are physically, chemically, and optically identical to natural diamonds — they're real diamonds, just created in a controlled laboratory environment rather than mined from the earth. The crystal structure (carbon arranged in a diamond lattice), hardness (10 on the Mohs scale), optical properties (refraction index, dispersion that produces fire), and gemological grading (color, clarity, cut, carat) are identical between lab grown and natural diamonds. Lab grown diamonds are graded by the same gemological labs (GIA, IGI) on the same scales as natural diamonds. The difference is origin and price; lab grown costs approximately 40-60% less for the same specifications.
The choice depends on visual character preference and pairing with your engagement ring. Round brilliant diamonds produce maximum sparkle and pair coherently with most engagement ring styles. Step-cut diamonds (emerald, baguette, asscher) read architectural and pair best with step-cut center engagement rings. Marquise diamonds read distinctive and pair with marquise, oval, or pear center engagement rings. Princess cut diamonds read angular and modern. Oval diamonds read elegant and elongated. We confirm cut choice during the design conversation based on your engagement ring (if pairing) and visual preferences.
Half eternity and partial-diamond wedding bands can be resized within a reasonable range (typically 2-3 sizes up or down) — the resize work cuts through the band, adjusts the diameter, and rejoins. Some diamonds near the resize area may need to be reset depending on how much adjustment is required. Full eternity bands generally cannot be resized because diamonds run around the entire circumference, preventing the cutting needed for resize work. If future resizability matters to you, choose a half eternity or partial-diamond design rather than full eternity. We discuss specific design resizability during the design conversation.
Diamond wedding rings in this collection are made-to-order in approximately 2-3 weeks from when your order is placed. The crafting process includes sourcing diamonds in your specified origin (lab or natural), size, and quality; alloying the metal; forming the band; hand-setting each diamond; and final finishing. Eternity bands with many diamonds may take the full 3 weeks; narrow pavé bands typically finish in 2 weeks. Custom diamond wedding ring designs take 3-4 weeks from design approval. Engraving adds approximately 1 week to any timeline.
Diamond wedding ring pricing depends on diamond count, total carat weight, diamond quality (lab grown vs natural, VS-SI1 vs higher), and metal choice. Narrow pavé wedding bands in 14K gold with lab grown diamonds start around $1,200. Half eternity bands range $2,000-$4,000. Full eternity bands range $3,500-$8,000+ depending on diamond size and total carat weight. Statement diamond wedding bands with substantial individual diamonds (like the Gabby at 0.90 carats) range $4,000+. Lab grown diamonds reduce cost approximately 40-60% compared to natural. Specific pricing is confirmed during the design conversation.
Yes — many wearers choose to wear their engagement ring on one finger and diamond wedding band on another (often switching the engagement ring to the right hand after the wedding). Some wearers find this more comfortable than stacking the two rings together, particularly when the engagement ring has a substantial center stone that catches on adjacent fingers. The choice is personal and doesn't affect either ring's design. If you anticipate wearing your wedding band on its own (without the engagement ring) frequently, choose a wedding band design that reads complete and distinctive on its own rather than one designed primarily to nest against the engagement ring.
Yes. We can replace any lost diamond on a ring we've crafted. The replacement diamond is sourced to match the original specifications (lab grown or natural, same size, same color, same clarity), set in the same setting style, and finished to match the original ring. Diamond loss is rare with proper care and annual prong inspection (a free service we provide for any ring we've crafted), but if it happens, replacement work is straightforward. We maintain records of every ring we craft so the original specifications can be matched exactly. Contact us when a replacement is needed.
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