Thalia Crown III | Laboratory Grown Diamonds

$965 ~~$1930~~ In stock

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

Our Thalia 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)

Eli K. ★★★★★ Sep 8, 2026

The four sizing options meant I could finally get a ring that actually fits my engagement band without any gaps. Wearing it feels like the diamonds catch the light from every angle, and the intricate lace pattern looks even more detailed up close than in the photos.

Henry ★★★★★ Sep 7, 2026

The intricate diamond-lacing catches the light from every angle, and the fact that it comes in four sizes meant I could find the exact snug fit my fiancée wanted. She hasn't taken it off since the proposal.

Zoe C. ★★★★★ Sep 1, 2026

I was nervous about sizing a ring online, but the four-size design made it easy to find the perfect fit for my engagement ring. The intricate diamond-laced detailing catches the light beautifully and feels substantial without being heavy.