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The Vow™ 2-in-1 Lab-Grown Diamond Engagement Ring & Wedding Band Set

The Vow™ 2-in-1 Lab-Grown Diamond Engagement Ring & Wedding Band Set

An engagement ring and wedding band built to find each other perfectly. Starting from $2,800.

Estimated Price At

$2,800.00

What goes into The Vow

  • A true 2-in-1 design — engagement ring and band engineered to sit as one. The part you can't buy anywhere else.
  • IGI-certified lab-grown diamond, independently graded.
  • Solid 14k/18k gold, made to order.
  • Free first-year resizing + lifetime craftsmanship warranty.
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Product Details
  • Center stone: Lab-grown princess cut diamond
  • Available carat: 1ct – 5ct+
  • Stone grade (standard): D–F color; VS1–VVS2 clarity
  • Setting: 4-prong cathedral solitaire
  • Engagement ring metal: 14k or 18k gold
  • Wedding band metal: 14k or 18k gold (pavé)
  • Finish: Brushed satin (engagement ring)
  • Band width~3.5mm (ring); ~2.5mm (band
  • )Inner band: Smooth comfort-fit
  • Certification: IGI (laser-inscribed girdle)
Craft

Each Vow set is hand-finished and reviewed across three stages: stone setting, band geometry, and a final wear test. The interlocking fit is machined to ±0.1mm so the two pieces come together cleanly at every size. The brushed finish is applied by hand after the stone is set — preserving the texture at the prongs and along the shank, where the ring lives closest to her hand.

Certification

Every center stone comes with an IGI certificate documenting its cut, color, clarity, carat, and fluorescence. The certificate number is laser-inscribed on the stone's girdle — a permanent record she can always come back to. The full certificate ships with every order.

Delivery

Ships within 3–4 weeks from order confirmation. If a custom stone is being sourced, we'll confirm the timeline at checkout — usually 1–2 weeks more. Arrives in Maison Rivelle packaging with her IGI certificate, a care card, and a polishing cloth. Complimentary resizing within 60 days of delivery, because life changes and so do fingers.

FROM THE FOUNDER

Why I built The Vow

"The two-ring problem was the first thing I was trying to fix when I started Maison Rivelle. An engagement ring and a wedding band are two separate objects, and getting them to sit together properly is its own multi-month project that takes most couples by surprise. The Vow solves this by being one design — engagement and band, fitted together so they read as a single piece on the hand.

"The Wear-First Design™ approach means every decision about the ring starts from how it actually feels to wear. The squared cross-section that prevents spinning. The lower-profile setting that doesn't snag. The locked-pair design that solves the two-ring problem without making either piece feel less complete.

"I worked through three months of iterations with a designer in Italy before I had a version that felt right. The version we ship is the version I wear myself. If something feels off when you put it on, I want to know — that feedback is how the next version gets better."

Questions people ask before buying

What makes The Vow different from a traditional engagement ring & wedding band set?

A traditional engagement ring and wedding band stay two separate rings — even matched sets just sit side by side, with a gap between them. The Vow is engineered so the two click together into a single ring, worn as one piece, not two.

Does The Vow remove the gap between the engagement ring and wedding band?

Yes. Both rings are engineered to sit together seamlessly, removing the gap common in traditional pairings.

How does the engagement and band lock together?

The Vow is one piece, designed as a fitted pair. The engagement ring sits flush against the band, with no daylight between them. There's no soldering required and no separate "bridal set" purchase to make.

Is the diamond real?

Yes. Lab-grown diamonds are real diamonds — chemically and optically identical to mined diamonds, with a different point of origin. Every Maison Rivelle stone ships with an independent IGI grading certificate.

Can I customize the stone, metal, or size?

Yes. Shape, carat, metal, and size are all configurable; further customization is available with the founder.

What if my ring size changes?

Every ring includes one complimentary resize within 60 days of delivery. We send a prepaid label, do the work, and ship the ring back.

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