Reina Crown III | Laboratory Grown Diamonds

$1226.94 ~~$1859~~ 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 III was designed with trio style rings in mind. It is best suited to trio styles with a narrow spread and steep gradient. For example, a round trio ring with round side stones and a centre stone of up to 6.5mm in diameter, or an oval trio ring with round side stones and a centre stone of up to 8x6mm in diameter.

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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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.

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Customer Reviews (5.0 / 5 · 5 reviews)

Ellie ★★★★★ Sep 8, 2026

The four size options meant I could match it perfectly against my engagement ring, and the gap sits flush without any wobble. It catches the light in a way that feels almost unfair for the price, and I catch myself staring at it during meetings.

Joseph ★★★★★ Sep 7, 2026

I’ve worn it every day since the wedding and the band feels perfectly balanced against my engagement ring, thanks to the four size options. The lab-grown diamond catches light beautifully without that harsh glare I was worried about, and I love that it’s a classic design that won’t look dated in ten

Madison ★★★★★ Sep 1, 2026

The four size options made it easy to match my engagement ring exactly, and the diamonds catch the light beautifully. I’ve worn it daily for a week and it feels as solid as it looks.