The Riley Marquise Side Diamond Engagement Ring

Name: The Riley Marquise Side Diamond Engagement Ring
Brand: Lisa Robin
SKU: OMI-85230
Price: 2475.0 USD
Availability: InStock
Rating: 5.0 (1 reviews)

Shown in 1.0 Carat Diamond

The Riley Marquise Side Diamond Engagement Ring

The marquise cut was created in 18th-century France, named for its resemblance to a smile and chosen specifically for its boldness. Two centuries later, the shape still carries that spirit — pointed, elongated, deliberately distinctive.

The Riley brings that quality into a marquise side diamond engagement ring where the pointed shape isn't decorative — it's the design language. A continuous flow of marquise diamonds surrounds the finger on both sides, each pointed tip drawing the eye toward your center diamond. As a side stone engagement ring with directional movement, the Riley reads as purposeful rather than uniformly bright. As a marquise accent engagement ring with shared-prong construction, the band feels like motion captured rather than diamonds simply set.

Wear it as a ring that points toward what matters. The Riley joins a Lisa Robin tradition of marquise and side stone engagement rings designed for couples drawn to expressive brilliance and purposeful design.

Design Process

The Lisa Robin Engagement Ring Design Experience

How your ring goes from your idea to the finished piece, with clarity at every step.

Online Ordering

Begin your custom engagement ring online, with guidance at each decision. Diamond shape guides, setting comparisons and education pages throughout the site help you understand every choice.

If you would like to personalize your design, place your order at any time. Lisa follows up to refine the details with you before anything is crafted.

Private Design Appointments

For a more collaborative experience, meet with Lisa one-on-one, in the studio or by Zoom. Your design appointment is shaped around you: Lisa guides each decision in real time as your diamond engagement ring takes shape.

Compare diamonds from trusted suppliers around the world through the Lisa Robin Global Diamond Collection.

Review available diamonds by shape, proportions and overall presence, and choose the one that suits your design, your priorities and your budget.

Lisa shows you how each diamond will sit in your setting, so the finished engagement ring feels balanced and intentional.

Natural and lab-grown diamonds are both available, so you can choose what feels right for you.

Before your ring is crafted, you review detailed CAD renderings made with your diamond's exact dimensions.

Multiple views let you see proportions, balance and design details, so you know how your engagement ring will come together before crafting begins.

If you add a wedding ring to the same order, the renderings show each ring on its own and both together, so you can see how they pair.

Once you approve your design, your ring is crafted by hand, made for you.

Your engagement ring is completed in 3 to 4 weeks after design approval.

Choose fully insured shipping or a private pickup at the studio. Lisa stays in touch at every stage, so you always know what comes next.

Couples Who Designed Their Engagement Rings With Lisa

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

Engagement Ring Setting Questions

The setting is everything except the center diamond: the band, the prongs or bezel that hold your diamond, and any side diamonds. Each Lisa Robin setting is made to the exact dimensions of the diamond it holds, so your setting and center diamond are chosen and ordered together.

No. Every setting is made to fit its diamond exactly, so the two are ordered together. You can choose a lab-grown or natural diamond, or bring an heirloom diamond of your own. A handling fee applies to diamonds you supply, and you know the amount before you approve.

Settings start at $2,095 in 14K gold, and each product page shows the current price for every metal. Your center diamond is priced on its own, by size, shape, quality and whether it is lab-grown or natural, and its price includes designing your ring to its exact dimensions and setting it.

Your ring is crafted in 3 to 4 weeks after you approve your design. If you have a proposal date in mind, tell Lisa at your first appointment so the timeline is planned around it.

The settings shown here are made in 14K yellow, white or rose gold, or platinum. A custom engagement ring can be made in 10K, 14K or 18K gold, or platinum. Lisa explains how each metal wears and how it changes the price.

Either fits any setting here. Lab-grown is the more common choice, because it gives you a larger diamond for the same budget. Natural diamonds hold their rarity. Lisa shows you both side by side on screen, with every number, so you can compare before you decide.

Yes. You can change the diamond shape, the band width, the setting height or the side diamonds. Any change makes it your design, and you see it in CAD renderings built to your diamond before it is made.

Start with what you want to notice first: one diamond, a frame of diamonds, or many set together. A solitaire keeps attention on your center diamond, a halo adds sparkle around it, and a cluster gives a fuller look. The Engagement Ring Style Quiz narrows it down in a few questions.

Yes. Lisa builds CAD renderings of your ring to your diamond's exact size, from several angles and beside your wedding ring if you're designing both. Nothing is made until you approve.

Every Lisa Robin engagement ring carries a lifetime craftsmanship warranty against crafting defects. A JM Care Plan is available for coverage beyond that, and Lisa explains both at your appointment.

Back to Engagement Ring Settings

Metal Options	14K Yellow Gold, 14K White Gold, 14K Rose Gold, or Platinum. Sustainably sourced.
Setting Diamond Total Weight	0.56 carat
Setting Diamond Quality	Lab grown VS–SI1, E-F-G
Style	Marquise side diamond engagement ring
Setting	Four rounded prongs
Band	2mm
Setting Height	Medium
Band Profile	Diamond shank
Crafting Time	Approximately 3-4 weeks

The Riley Marquise Side Diamond Engagement Ring

What makes marquise side diamonds different from round side diamonds?

How does the Riley's shared-prong arrangement contribute to the design?

Why choose a directional diamond engagement ring with pointed shapes?

The Riley Marquise Side Diamond Engagement Ring

The Lisa Robin Engagement Ring Design Experience

Couples Who Designed Their Engagement Rings With Lisa

Engagement Ring Setting Questions