Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of the marquise, it traces a delicate arc of brilliance that seems to dance with every movement. This semi-set halo engagement ring foundation, crafted in cool platinum, frames an 8 x 4 mm marquise center with a subtle embrace designed to amplify its tapered drama.

The halo setting is meticulously hand-finished in our Williamsburg studio, where each prong is shaped to hold your chosen stone securely while maintaining a low-profile silhouette that slips comfortably beneath gloves or daily wear. The platinum band offers a smooth comfort fit, balancing strength with refined elegance.

Our commitment to ethical jewelry is reflected in the exclusive use of lab-grown diamonds, ensuring clarity and sustainability without compromise. This piece invites personalization, allowing you to select a marquise diamond that resonates with your story.

Ideal for those who appreciate a ring that elongates the finger and pairs effortlessly with stacking bands or a wedding band of your choice. The halo’s gentle sparkle adds dimension without overwhelming, making it a graceful companion for everyday life.

Should you need resizing or guidance on selecting the perfect marquise, our Brooklyn studio offers a pressure-free consultation to tailor your ring with care and precision.

Explore this semi-set halo in person at our Williamsburg workshop or begin your custom design journey online—where craftsmanship meets conscious luxury.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with expert precision, ethical integrity, and a deep connection to New York City’s creative spirit.

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.