Shown in 1.0 carat Green Emerald
Shown in 1.0 carat Green Emerald* The Allison Round Green Emerald Engagement Ring | Lisa Robin
Shown in 1.0 carat Green Emerald
Shown in 1.0 carat Green Emerald* The Allison Round Green Emerald Engagement Ring | Lisa Robin
Shown in 1.0 carat Green Emerald
Shown in 1.0 carat Green Emerald* The Allison Round Green Emerald Engagement Ring | Lisa Robin
Shown in 1.0 carat Green Emerald
Shown in 1.0 carat Green Emerald* The Allison Round Green Emerald Engagement Ring | Lisa Robin
Shown in 1.0 carat Green Emerald* The Allison Round Green Emerald Engagement Ring | Lisa Robin
Shown in 1.0 carat Green Emerald* The Allison Round Green Emerald Engagement Ring | Lisa Robin
Shown in 1.0 carat Green Emerald* The Allison Round Green Emerald Engagement Ring | Lisa Robin
Shown in 1.0 carat Green Emerald* The Allison Round Green Emerald Engagement Ring | Lisa Robin
Alternative Engagement Rings

The Allison Solitaire Green Emerald Engagement Ring

The Allison is a solitaire designed to let color do the work of ornament. Where most colored gemstone settings add accents around the center, the Allison subtracts them — the band tapers inward toward the prongs, and nothing else competes with the emerald.
$ 2,095.00
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The Allison raises an emerald on four prongs above a tapered band, ornament stripped away so the green carries the ring alone. It reads vivid against yellow gold, deeper against white — and set open like this, the color is yours to see from every side.

Emerald draws its green from a trace of chromium in the beryl — what makes an emerald green.

Metal Options 14K Yellow Gold, 14K White Gold, 14K Rose Gold, or Platinum. Sustainably sourced.
Center Emerald
Style Emerald solitaire engagement ring
Setting Four-prong head
Band Tapers from 1.4mm to 1.3mm
Setting Height Medium
Band Profile Tapered
Crafting Time Approximately 3-4 weeks

Setting starts at $2,095 in 14K gold and $2,495 in platinum.

How does the Allison differ from a typical emerald engagement ring?

The Allison is an emerald solitaire engagement ring composed by subtraction. The tapered band narrows toward four rounded prongs that hold the emerald clean above the metalwork; nothing else competes with the center. Choose the Allison when the emerald you have chosen carries the design without needing accent geometry around it.

Why does the Allison taper the band toward the setting?

The Allison's band tapers from full width at the back down to a narrower point where it meets the four prongs holding the emerald. The taper draws the eye inward toward the center and keeps the proportions delicate around the setting so the emerald reads larger by contrast.

How do I choose between a solitaire and a side stone emerald engagement ring?

A solitaire emerald engagement ring lets the color of the center carry the entire design — no accent stones competing for attention. A side stone or halo emerald engagement ring frames the center with accent diamonds that add sparkle and visual weight. The choice depends on the emerald itself: a deeply saturated, well-cut center often holds its own as a solitaire, while a paler or smaller stone benefits from the brilliance of accents around it.

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

Subtraction as a Design Choice

Subtraction is a design choice. The Allison works by what isn't there.

The emerald at the center carries the rest of the design's color responsibility. Emeralds come in a remarkable range — garden green through forest green to the most prized deep velvety green of Colombian origin, often with characteristic inclusions that gemologists call jardin — a garden visible inside the stone. A colored gemstone engagement ring with an emerald center is as much about which emerald as about which setting: a garden green reads vivid against yellow gold, a forest green deepens against white gold, a Colombian green reads classic against rose. Emerald is softer than sapphire (7.5-8 Mohs) and naturally inclusion-rich, which makes the protective setting style here important — bezels, halos, and side accents shield the corners and crown from wear. Most couples come to an emerald engagement ring expecting one color and leave open to the range.

On the hand, the Allison reads as architecture in service of color — the tapered line concentrates attention on the center emerald, and the absence of ornament keeps the eye from wandering. The Allison joins a Lisa Robin tradition of solitaire engagement rings designed for couples who choose by hue, not by halo.

The Allison Solitaire Green Emerald Engagement Ring
The Allison Solitaire Green Emerald Engagement Ring

Design Process

The Lisa Robin Engagement Ring Design Experience

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

From the bottom the stack is styles with the Jamie gold band, the Allison engagement ring, and the Kendall to cap it off.

Diamond Wrap Ring - Lisa Robin
Diamond Wrap Ring
Double Row Open Ring - Lisa Robin
Double Row Open Ring-14K Yellow Gold

Frequently Asked Questions About Alternative Engagement Rings

Alternative engagement rings aren’t defined by unusual metals but by unique gemstones or design choices. The metals themselves remain traditional and high-quality, typically 14k, 10k, or 18k by request, yellow, white, or rose gold, as well as platinum. Since nearly all makers use recycled metals today, the distinction comes from the stone and the design, not the metal type.
Absolutely. “Alternative” doesn’t have to mean opting out of diamonds altogether. It can refer to the style, setting, or the type of diamond you choose, such as reclaimed diamonds, lab-grown diamonds, or even colored diamonds that offer a distinctive, non-traditional look. These options allow you to enjoy the timeless appeal of a diamond while expressing your individuality through a unique design approach.
Made-to-order engagement rings take approximately 3–4 weeks to create.
The cost of the setting itself is generally the same regardless of whether you choose a traditional diamond or an alternative gemstone. The biggest price difference comes from the stone: many alternative gemstones are less expensive than diamonds, which can make the overall ring more budget-friendly while still offering exceptional beauty and craftsmanship.
Some gemstones are softer than diamonds and may need more mindful wear or occasional polishing. Lisa Robin provides guidance on how to care for each unique stone and setting.
In most cases, meaningful modifications to an alternative engagement ring require the piece to be remade rather than simply adjusted. Because these designs often use unique settings, stone shapes, or construction methods, resizing or altering components can compromise the integrity of the original ring. If you anticipate wanting future upgrades or changes, it’s best to discuss those possibilities during the design process so the ring can be recreated intentionally when the time comes.
Heirloom quality is determined by craftsmanship, material integrity, and timeless design, not just the gemstone. A thoughtfully made alternative ring can be passed down for generations.
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