Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate sparkle that seems to dance with every movement. This semi-set halo ring invites you to choose a 7 x 3.5 mm marquise stone, its tapered shape lending a graceful, almost regal presence to the hand.

Crafted from warm 18K yellow gold, the band is shaped and polished in our Williamsburg studio to a smooth comfort fit that feels natural for daily wear. The halo setting, designed with meticulous artisan precision, surrounds the center stone with a fine circle of pavé diamonds, enhancing brilliance without adding bulk. The low-profile mounting ensures the ring slips easily under gloves or sleeves, making it an elegant companion for both everyday moments and special occasions.

Each lab-grown diamond selected for this ring reflects a commitment to sustainability and clarity, offering an ethical alternative without compromise on beauty or light performance.

Ideal for those who appreciate a vintage-inspired silhouette with modern craftsmanship, this ring complements slender fingers and pairs effortlessly with stacking bands or a wedding band of your choice.

Should you need resizing or wish to discuss stone options, our Brooklyn studio offers personalized consultations with transparent timelines and care guidance.

Explore this semi-set marquise halo in person at our Williamsburg workshop or begin your custom design journey online—crafted for a lifetime of moments.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship, ethical sourcing, and local artistry into every piece.

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.