Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, dramatic shadow that hints at quiet confidence. This three-stone semi-set engagement ring frames a 12 x 6 mm marquise center with two delicately balanced side stones, each facet engineered to amplify clarity and light.

Crafted in 18K white gold, the band’s sleek profile and precise low setting ensure a comfortable fit that slips easily beneath gloves or stacks seamlessly with other bands. The clean lines and structured geometry reflect a modern-minimal aesthetic, emphasizing architectural clarity over ornamentation. Each piece is hand-finished in our Williamsburg studio, inspected for symmetry and polish to meet exacting standards.

Our diamonds are lab-grown, offering a transparent origin and a smaller environmental footprint without compromising brilliance or durability.

This ring suits those drawn to refined structure and understated elegance—ideal for hands that appreciate a statement in subtlety. The semi-set design invites you to select a center stone that resonates personally, allowing for a truly custom expression.

Resizing is available to ensure the perfect fit, with care instructions provided to maintain the ring’s luminous finish over time.

Visit our Williamsburg studio to explore this design in person or begin your custom journey online, where expert guidance awaits at every step.

Haejin Jewelry stands as a Brooklyn-based atelier specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with contemporary design sensibility 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.

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