Reina Crown III | Laboratory Grown Diamonds

$929.5 ~~$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.

Customer Reviews (5.0 / 5 · 5 reviews)

Emma U. ★★★★★ Sep 8, 2026

I was nervous about the fit since we're still tweaking my engagement ring, but the four different sizing options meant we found our perfect match right away. The lab-grown diamond has such a brilliant sparkle against the classic band, and it sits flush without any wobble.

Ellie ★★★★★ Sep 7, 2026

The four size options made it so easy to match my engagement ring perfectly, and the lab-grown diamonds have a brilliance that photographs beautifully. I’ve worn it daily for two weeks now and it hasn’t snagged on anything once.

Richard ★★★★★ Sep 1, 2026

I was nervous about ordering a ring online, but the sizing system here is genius—I matched it to my engagement ring and it sits flush, no wobble. The stones catch the light so beautifully that I keep catching myself staring at my hand during work calls.