Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it casts a striking, tapered brilliance that draws the eye along the hand’s natural lines. This semi-set halo mounting in 18K palladium white gold offers a refined frame, designed to cradle a 10 x 5 mm marquise center stone with artisan precision.

Crafted in our Williamsburg studio, the band’s low-profile setting balances presence with everyday wearability, while the halo’s delicate pavé work enhances sparkle without overwhelming. The palladium white gold lends a cool, luminous sheen that resists tarnish and feels weighty yet comfortable against the skin.

Each piece reflects our commitment to ethical jewelry: the semi-set allows you to select a lab-grown diamond, ensuring clarity and sustainability without compromise. The mounting’s streamlined shape suits slender to medium fingers and pairs effortlessly with stacking bands or a wedding ring.

Should you need resizing or prefer a custom fit, our Brooklyn workshop handles adjustments with care, maintaining the ring’s structural integrity. Typical lead times accommodate thoughtful design and finishing.

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

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