Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that feels both bold and intimate. This 12 by 6 mm center stone is cradled in a delicate halo of pavé-set lab-grown diamonds, each meticulously placed to amplify the central gem’s fiery brilliance.

Crafted from warm 14K rose gold, the band is hand-finished to a smooth comfort fit, its subtle curve designed for everyday wear without catching or shifting. The halo setting sits low enough to slip easily beneath gloves or stack alongside other bands, marrying artisan precision with practical elegance.

Our lab-grown diamonds offer a clarity and sparkle indistinguishable from mined stones, created with a commitment to reducing environmental impact and ethical sourcing.

This ring suits those who appreciate architectural drama softened by a blush of rose gold warmth—ideal for slender fingers or anyone drawn to a vintage-inspired yet modern silhouette.

Should you need resizing, our in-house jewelers ensure a seamless adjustment without compromising the setting’s integrity.

Visit our Williamsburg studio to experience this marquise halo in person or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry 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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.