Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of the marquise diamond, casting a slender, dramatic silhouette that feels both bold and intimate on the hand. This halo setting frames the 8 x 4 mm lab-grown stone with a delicate circle of pavé diamonds, enhancing its tapered drama without adding bulk.

Crafted in polished platinum, the band offers a low-profile design that sits close to the finger, ensuring comfort for everyday wear. The halo setting is meticulously finished to balance sparkle with subtlety, while the platinum’s cool tone complements the diamond’s icy clarity. Each ring undergoes detailed inspection in our Williamsburg studio to meet exacting standards of craftsmanship.

Our commitment to sustainability is reflected in the lab-grown diamond’s traceable origin, offering an ethical alternative without compromising brilliance or durability.

Designed for those who appreciate refined geometry and a confident yet wearable statement, this ring’s slender profile pairs effortlessly with wedding bands or stackable rings. Its shape elongates the finger, making it especially flattering on slender hands.

Should you need resizing, our Brooklyn studio provides expert adjustments to ensure a perfect fit without compromising the setting’s integrity.

Explore this marquise halo ring in person at our Williamsburg studio or begin your custom design journey online—crafted for daily life with Brooklyn’s quiet confidence.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a modern design ethos rooted in 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.