Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that naturally elongates the finger. This halo setting in platinum frames the 10 x 5 mm lab-grown marquise with a delicate circle of pavé stones, enhancing brilliance without adding bulk.

Crafted in Williamsburg, the ring’s low-profile design ensures it sits close to the hand, balancing presence with everyday comfort. The platinum band is polished to a satin finish, offering subtle texture that resists scratches while maintaining a refined glow. Each stone is meticulously set by hand, inspected for secure placement and seamless alignment.

Our lab-grown diamonds provide the same optical and chemical properties as mined stones, with a significantly reduced environmental footprint. This ring embodies ethical jewelry without compromise on sparkle or durability.

Ideal for those who appreciate architectural elegance paired with practical wearability, the slim halo complements slender fingers and fits comfortably beneath gloves or alongside stackable bands. Its secure setting and smooth edges make it a reliable choice for daily wear.

Should you need resizing, our in-studio experts ensure a precise fit without altering the ring’s profile or integrity.

Visit our Williamsburg studio to experience this marquise halo in person or begin your custom design journey online. Haejin Jewelry is proud to craft lab-grown diamond engagement rings that reflect Brooklyn’s spirit—thoughtful, refined, and ethically made.

See how your design comes to life with our Ring Design Online, or start a truly custom piece from scratch in our Williamsburg studio.

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