Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of your hand as a 10 x 5 mm marquise diamond takes center stage, framed by a delicate halo that catches light from every angle. This semi-set engagement ring foundation in 10K white gold offers a refined silhouette, designed with a low-profile setting that slips comfortably beneath daily gloves and sleeves.

Crafted in Williamsburg, the band is hand-finished to a smooth comfort fit, ensuring it wears effortlessly through Brooklyn’s rhythm. The halo setting balances brilliance with practicality, securing the stone while maintaining a sleek profile that resists snagging.

Each piece features a lab-grown diamond foundation, reflecting a commitment to ethical sourcing and environmental mindfulness without compromising on clarity or fire.

Ideal for those who appreciate architectural elegance with a modern edge, this mounting suits slender to medium finger shapes, enhancing natural hand lines while allowing for stackable styling.

Should you need resizing, our Brooklyn studio offers precise adjustments to maintain the ring’s integrity and comfort.

Explore this semi-set marquise halo ring 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 everyday life and lasting beauty.

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.