Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of the marquise diamond, casting a delicate shadow that dances along the slender 18K rose gold band. This semi-set solitaire ring offers a refined foundation, ready to cradle an 8 x 4 mm marquise center stone with quiet elegance.

Handcrafted in our Williamsburg studio, the band’s warm rose gold is polished to a soft sheen, its slim profile designed for everyday wear without catching or discomfort. The setting’s low silhouette ensures the diamond sits close to the finger, blending modern minimalism with artisan precision.

Each lab-grown diamond chosen for this ring reflects a commitment to sustainable luxury, offering clarity and brilliance without the environmental cost of traditional mining.

Ideal for those who appreciate a sculptural silhouette, the marquise shape visually elongates the finger, while the comfort fit band supports stacking or solo wear. Its subtle presence pairs well with gloves or layered rings, making it a versatile choice for daily life.

Should you need adjustments, resizing is available to ensure a seamless fit, crafted with the same care as the original design.

Visit our Williamsburg studio to explore this semi-set marquise solitaire or begin your custom design journey online—where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artisan expertise to create pieces made for a lifetime.

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.