Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated curve of an oval diamond, casting a gentle glow that seems to stretch across the hand. This semi-set solitaire invites a fixed two-tone a 10 x 8 mm oval stone, known for its graceful elongation and subtle vintage charm, balanced by a modern-minimal setting.

Crafted in a fixed two-tone combination of warm 18k rose and 18k rose and platinum and cool 18k rose and platinum, the six-prong mounting secures the stone with architectural precision while maintaining a lightweight, low-profile silhouette. The band’s slender form and smooth finish ensure comfort for daily wear, slipping easily beneath gloves or alongside stackable rings.

Each piece reflects a commitment to ethical jewelry through the use of lab-grown diamonds, offering clarity and brilliance with a smaller environmental footprint. The rose and 18k rose and platinum contrast is hand-finished in our Williamsburg studio, where every detail is inspected for seamless integration and lasting durability.

Designed for those who appreciate structured elegance without excess, this solitaire suits a range of lifestyles—from the minimalist who values clean lines to the collector layering delicate bands. The semi-set format allows you to select a center stone that resonates personally, making the ring uniquely yours.

Resizing is available to ensure a perfect fit, and our Brooklyn studio welcomes you to explore this design in person or begin your custom journey online.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a modern aesthetic 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.