Lab-Grown Diamond Engagement Ring

Light catches the elongated marquise shape, its pointed ends drawing the eye along a graceful silhouette that feels both bold and refined. This semi-set halo ring offers a delicate frame around a 9 x 4.5 mm center stone, designed to amplify brilliance without overwhelming the hand.

Crafted in 18K white gold, the mounting balances strength with subtlety, featuring a low-profile setting that sits close to the finger for everyday comfort. The halo’s petite pavé diamonds enhance sparkle while maintaining a sleek profile, ideal for layering or solo wear. Each piece is meticulously finished in our Williamsburg studio, ensuring smooth edges and a comfort fit band that adapts to daily life.

Our lab-grown diamonds provide a clear, sustainable alternative with the same optical precision as mined stones, reflecting a commitment to ethical jewelry without compromise.

This design suits those who appreciate architectural elegance paired with practical wearability—especially flattering on slender fingers or anyone seeking a ring that transitions effortlessly from work to weekend. The low profile and secure setting make it glove-friendly and stackable with other bands.

Should you need resizing, our Brooklyn studio offers expert adjustments to ensure a perfect fit without sacrificing integrity or style.

Explore this semi-set marquise halo in person at our Williamsburg studio or begin your custom design journey online, where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for a lifetime.

See how your design comes to life with our Ring Design Online, or start a truly custom piece from scratch in our Williamsburg studio.

Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.