Shown in 1.5 Carat Aquamarine
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in yellow gold by Lisa Robin
Shown in 1.5 Carat Aquamarine
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in white gold by Lisa Robin
Shown in 1.5 Carat Aquamarine
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in rose gold by Lisa Robin
Shown in 1.5 Carat Aquamarine
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in rose gold from angle by Lisa Robin
Shown in 1.5 Carat Aquamarine
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in rose gold from side view by Lisa Robin
Shown in 1.5 Carat Aquamarine
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in rose gold from back view by Lisa Robin
Shown in 1.5 Carat Aquamarine
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in platinum by Lisa Robin
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in yellow gold by Lisa Robin
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in white gold by Lisa Robin
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in rose gold by Lisa Robin
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in rose gold from angle by Lisa Robin
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in rose gold from side view by Lisa Robin
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in rose gold from back view by Lisa Robin
Shown in 1.5 Carat Aquamarine*The Sierra Pear Aquamarine halo diamond Engagement Ring in platinum by Lisa Robin
Non-Traditional Engagement Rings

The Sierra Pear Aquamarine Halo Engagement Ring

The Sierra frames a pear-cut aquamarine in a halo of round white diamonds, with larger rounds at the four compass points.
$ 2,695.00
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The Sierra cradles a pear-cut aquamarine in a white diamond halo with larger rounds at the compass points — the pointed pear given direction, its cool blue-green held clean inside the bright frame.

Aquamarine takes its sea-blue from a trace of iron in the beryl — why aquamarine is blue.

Metal Options 14K Yellow Gold, 14K White Gold, 14K Rose Gold, or Platinum. Sustainably sourced.
Center Pear cut aquamarine
Halo Round white diamond cluster with larger round diamonds at the compass points
Style Aquamarine pear halo engagement ring
Setting Six rounded prongs
Band 2mm
Setting Height Medium
Crafting Time Approximately 3-4 weeks

Setting starts at $2,695 in 14K gold and $3,095 in platinum.

How does the Sierra differ from a typical pear-shaped engagement ring?

Most pear halos use one uniform ring of round diamonds. The Sierra sizes them unevenly: larger round diamonds mark the four compass points, with smaller ones filling between, which gives the halo its vintage cluster look.

Why a pear cut rather than another shape for the Sierra?

The pear cut gives you one rounded end and one point, so the ring has a direction. The point aims up the finger and draws the hand longer. The larger compass-point diamonds pick up that axis at four places around the halo.

What do the larger round compass accents add to an aquamarine pear halo?

Set at the north, south, east and west points, the larger rounds extend the halo outward and give it rhythm rather than a single even ring. Around a pale blue center, they add brightness at the edges so the aquamarine reads clear rather than washed out.

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 aquamarine engagement ring ships in 3-4 weeks, approximately Nov 12 to Nov 16
Shipping costs calculated at checkout

Pear and Compass, Curve Meeting Point

A pear cut is asymmetric by nature — one rounded end, one pointed. The Sierra answers that asymmetry with halo geometry that points in four directions of its own.

Aquamarine ranges from pale ice through sky to deep sea blue, and because it's softer than sapphire, the halo's raised diamonds do real protective work here, not just visual work.

On the hand, the Sierra reads both lyrical and dynamic — the pear's curve against the directional pull of the compass points. The Sierra is for couples who want a pear's softness held inside structure, not a bare solitaire's point left unframed.

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

My fiancé designed my engagement ring with Lisa. I wanted something with a vintage feel and a blue center stone. They decided on this gorgeous aquamarine and chose rose gold to accent the blue. I love it, and it is perfect. Thank you Lisa, he wouldn't have been able to do it without you.

Sam & Sierra
Blacklick OH

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 & Zane
Blountville TN

Frequently Asked Questions About Non-Traditional Engagement Rings

A non-traditional engagement ring is defined by personal design choices—such as gemstone selection, diamond type, setting style, or overall structure—rather than a single standard format.
Yes. Many non-traditional rings feature diamonds, including lab-grown diamonds, colored diamonds, or diamonds set in unexpected ways.
Yes. They are typically crafted in 14k, 10k, or 18k gold by request, as well as platinum. The distinction comes from the design, not the material quality.
No. While colored gemstones are popular, many designs feature diamonds with unique settings, cuts, or proportions.
The timing is the same whether the ring is made-to-order or custom. Most are completed within approximately 3–4 weeks.
They can be, depending on the diamond or gemstone selected. Some options offer more flexibility in budget, while others—like rare colored diamonds—may be higher in cost.
Can I design a custom non-traditional engagement ring?
Back to Non-Traditional Engagement Rings