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The Flow|A chain-mechanism band that adjusts to your finger's actual size during the day

The Flow|A chain-mechanism band that adjusts to your finger's actual size during the day

$2,800.00

Free shipping · 30-day returns on standard pieces · Lifetime warranty · IGI/GIA certified · Made in NYC

A chain-mechanism band that adjusts to your finger's actual size during the day. Fingers swell with heat, hydration, and weight changes. A ring sized for 9 am is too tight by 3 pm. The Flow is the fix for that.

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Product Details
  • Center stone: Lab-grown 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
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

A chain-mechanism band that adjusts to your finger's actual size during the day. Fingers swell with heat, hydration, and weight changes. A ring sized for 9 am is too tight by 3 pm. The Flow is the fix for that.

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Questions people ask before buying

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 or GIA grading certificate.

What if it doesn't fit when she opens it?

Every ring includes one complimentary resize within 12 months of delivery. We send a prepaid label, do the work, and ship the ring back. Most resizes take 7-10 business days from when we receive the ring.

Where are your products manufactured?

Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

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