Reina Crown II | Laboratory Grown Diamonds

$990.66 ~~$1501~~ In stock

A piece for all stories; a pair for your personal duet. Our classic diamond Reina Crown Ring has been designed across four sizes to allow for the perfect, custom fit based on your engagement ring style.

Our Reina Crown Ring | Fit II was designed with an oval or pear shaped solitaire in mind, approx. 7x5mm or 8x6mm, or a round solitaire with a maximum stone diameter of 7mm. Please use our NMJ Crown Fit Guide here to find the perfect NMJ engagement ring and crown pairings, or contact our team here to discuss the right crown fit for your personal engagement ring.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Refund processing (days after receipt and inspection): 3. Bank or payment provider posting times are separate from the merchant processing period.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

Buyer arranges shipping; seller reimburses the postage

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Customer Reviews (5.0 / 5 · 5 reviews)

Lucy B. ★★★★★ Sep 8, 2026

The four size options made it so easy to match my engagement ring exactly—no gap, no wobble, just a seamless pair. I love how the lab-grown diamond catches the light even in dim rooms, and the band feels substantial without being heavy.

Steven ★★★★★ Sep 7, 2026

Four sizes across the range meant I found the one that sits flush against my engagement ring without any wobble, and the lab-grown diamond has a brilliant sparkle that catches light from every angle. It feels sturdy yet delicate enough for daily wear, and I’ve already gotten asked where it’s from tw

James H. ★★★★★ Sep 1, 2026

The sizing system is genius—I measured once and the fit against my engagement ring is absolutely seamless. The lab-grown diamond has this brilliant, clean sparkle that catches light from every angle, and honestly it feels lighter and more comfortable than I expected for a crown band.