Reina Crown II | Laboratory Grown Diamonds

$915.61 ~~$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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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)

Amelia G. ★★★★★ Sep 8, 2026

Tried it on with my engagement ring and the fit was spot on thanks to the size choices. The diamond catches the light beautifully, and it's comfortable enough that I forget I'm wearing it until I catch a sparkle.

Lucy ★★★★★ Sep 7, 2026

The four size options really made the difference for me—I measured twice and the fit against my engagement ring is absolutely seamless. The lab-grown diamond has that crisp, brilliant fire without any of the ethical guilt, and I catch myself staring at my hand during meetings. Worth every penny for

Alexander ★★★★★ Sep 1, 2026

The sparkle catches the light from across the room—my fiancée actually gasped when she tried it on. The fit against her engagement ring is flawless, and the lab-grown diamond looks every bit as brilliant as the mined ones we compared.