Shown in 10x8mm Moss Agate
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin
Cluster Engagement Ring Guide

The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring

An oval moss agate cabochon in five sizes, with a trio of lab created diamonds on each side. Every moss agate is unique — yours won't look like the photograph.
$ 2,775.00
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The Sophia frames an oval moss agate cabochon with a trio of lab diamonds on each side — a marquise and two rounds set like foliage around a stone that is itself a small green landscape. No two are alike; the mossy pattern in yours will be its own, and unlike the one in these photographs.

Moss agate's green isn't a body color at all but mineral inclusions branching through the quartz like ferns — explore colored gemstone rings.

Metal 14K Yellow, White, or Rose Gold. Sustainably sourced.
Center Oval moss agate cabochon — 8x6, 9x7, 10x8, 11x9, or 12x10mm
Diamonds Two 4x2mm marquise and four round lab created diamonds
Setting Side cluster, three diamonds each side
Band Tapered, polished
Crafting Time Approximately 3-4 weeks

Setting starts at $2,775 in 14K gold. Paired with an 8x6mm oval moss agate, the Sophia Moss Agate starts at approximately $3,025.

What is moss agate?

Moss agate is a form of chalcedony — a quartz — with green dendritic inclusions running through it. Despite the name there's no moss involved: those branching green threads are minerals, mostly iron and manganese, that crystallized inside the gemstone as it formed. The pattern is different in every single one, which is why yours won't match the photographs. It's associated with growth and new beginnings, though the appeal for most couples is simpler than that: no one else has this one.

Why is the moss agate a cabochon instead of faceted?

A cabochon is polished into a smooth dome rather than cut with facets. Facets exist to bounce light back out of a transparent diamond — that's what makes it sparkle. Moss agate isn't working that way: what you want to see is the pattern suspended inside it, and a smooth dome shows that clearly while facets would fracture the view. The cut follows the material.

Which moss agate size should I choose, and how durable is it?

The moss agate comes in five oval sizes — 8x6, 9x7, 10x8, 11x9, and 12x10mm. Larger isn't automatically better here: because the pattern inside every moss agate is different, size changes how much of that pattern you see. A 12x10 shows a whole landscape; an 8x6 shows a fragment of one. Neither is more correct, and we'll send you an image of the actual gemstone before it's set either way. On durability — worth knowing before you choose. Moss agate sits around 6.5 to 7 on the Mohs hardness scale, meaningfully softer than a diamond at 10 or a sapphire at 9. It holds up for daily wear but asks more of you: take it off for anything abrasive, including gardening, the gym, cleaning, and beach sand, and store it away from harder gemstones. A cabochon's smooth dome has no fragile edges, which helps. Nothing else looks like moss agate, so there's no substitute that gives you the same thing in a harder material — that's the real tradeoff. If durability matters more to you than this particular look, a green diamond is a different direction worth considering. Bring it to an appointment and we'll talk it through.

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 Sep 09 to Sep 13
Shipping costs calculated at checkout

The Sophia Oval Moss Agate Engagement Ring

Moss agate isn't moss. The green threading through it is mineral — iron and manganese that crystallized inside chalcedony as it formed, in branching patterns that happen to look like foliage caught in ice. Nobody designed it, and no two are the same.

That's why it's cut as a cabochon: a smooth polished dome rather than facets. Faceting is how you make a diamond throw light back at you. A moss agate has something else to show, and facets would only interrupt it.

Around it sit a trio of lab created diamonds on each side — a 4x2mm marquise with two rounds — arranged as a botanical cluster that echoes the branching inside the gemstone. The band tapers so nothing competes with the center.

The moss agate is included in your ring. Because each one is unique, we'll send you an image of the actual gemstone before it's set, so you see the exact piece going into your ring.

How Lisa Robin Designs Your Gemstone Engagement Ring

From gemstone selection to CAD approval, every decision is guided by Lisa personally.

Online Ordering
Begin your custom gemstone engagement ring through a guided online experience designed to bring clarity to each decision. From understanding gemstone options 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 gemstone engagement ring with clarity and intention.

Browse available certified gemstones sourced from trusted suppliers through the Lisa Robin gemstone collection.

As you explore your engagement ring, you can review gemstones by variety, color, and overall presence to select the one that best complements your design.

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

Certified natural gemstones are available through the online selection. Lab created gemstones can be made available by appointment — contact us to discuss your options.

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 an ethically sourced gemstone.

Each ring is a made to order engagement ring, typically completed in approximately 3-4 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 Gemstone 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
Shown in 10x8mm Moss Agate*The Sophia Oval Moss Agate Lab Diamond Accented Engagement Ring | Lisa Robin#color_14k-yellow-gold

Find Your Matching Wedding Band

Sophia pairs beautifully with Claire or Evara curved wedding rings.

The Claire Marquise Open natural Diamond Wedding Ring in 14K yellow gold from front by Lisa Robin#color_14k-yellow-gold
The Claire Marquise Diamond Open Wedding Ring
Evara twist lab diamond 10K yellow gold wedding band by Lisa Robin#color_10k-yellow-gold
The Evara Twist Wedding Band

Frequently Asked Questions About Cluster Engagement Rings

A cluster engagement ring gathers a constellation of smaller stones, most often diamonds, into a shape that creates visual impact far beyond any single center gem. At Lisa Robin, we see each cluster as a mosaic of stories: a setting where every stone, every angle, is intentional, and where the composition reflects your own personal narrative, not the pull of trends.
A solitaire ring centers on a single stone, all attention drawn to that one gem. In contrast, cluster rings celebrate collective brilliance and embrace variety; their significance is built on how each stone interacts with the next. Think of solitaires as solo ballads, and clusters as the harmony of voices, each equally memorable, but utterly distinct in their emotional resonance.
Often, yes. Cluster settings typically use an array of smaller stones, which can offer a lower combined price than a single large gem of comparable sparkle. But for us, “affordability” is more nuanced: it’s about discovering the design that fits both your budget and your story. Each Lisa Robin piece is hand-quoted during your consultation, so the price is shaped by your shared vision, not just carat weight.
There are no boundaries; diamonds (both lab-grown and natural), sapphires, emeralds, meaningful colored stones, and family heirloom gems all find their place in our custom cluster settings. At Lisa Robin, your story guides our material choices, and we source each stone ethically, treating every selection as an intentional act.
Absolutely. Customization is our starting point. Whether combining shapes, mixing metals, or selecting an unconventional palette of gems, our guided process is tailored to your preferences and story. We create digital renderings before crafting, so you participate fully in shaping your cluster ring—even beyond what’s shown online.
With thoughtful design and the right setting, cluster rings can become your daily companion. At Lisa Robin, we craft each piece for lifelong wear, taking into account your lifestyle and comfort during the design process. While some cluster settings require a bit more mindful care, their resilience is matched only by the emotional weight they carry.
Yes—with intentional design. Cluster engagement rings can be beautifully paired with contoured, curved, or custom wedding rings that echo their silhouette, ensuring the two pieces feel cohesive rather than competitive. During your consultation, we design with the full set in mind, so your engagement ring and wedding ring feel like they were always meant to belong together.
Back to Cluster Engagement Ring Guide