Reina Crown IV | Laboratory Grown Diamonds

$858 ~~$1716~~ 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 IV is a wide fitting crown and was designed with larger solitaire styles in mind, with a feature stone of up to approx. 8mm in diameter round or 8x6mm diameter oval. Also suited for broader trio styles with deeper side stones - for example, an oval trio ring with centre 1.5ct stone, or a round trio ring with centre stone up to 8mm 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)

Madison ★★★★★ Sep 8, 2026

The diamond sits just perfectly against my engagement ring, and the fact that it comes in four sizes meant I didn't have to worry about a bulky fit. It's delicate but feels secure, like it was made for our story.

Thomas U. ★★★★★ Sep 7, 2026

The four size options gave me the exact fit I needed alongside my engagement ring, and the diamonds have this brilliant sparkle that catches the light from every angle. It feels sturdy too, not flimsy like some other wedding bands I tried on.

Brian S. ★★★★★ Sep 1, 2026

The four sizing options meant I could match it perfectly against my engagement band—no gap, no wobble, just a seamless fit. The lab-grown diamonds catch the light with a crisp brilliance that honestly feels brighter than my older mined stone. Wore it through a week of dishwashing and hand sanitizer