Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated points of a marquise diamond, it casts a slender, dramatic silhouette that feels both bold and intimate. This semi-set halo engagement ring in 18K rose gold frames a 12 x 6 mm marquise center stone, designed to amplify its graceful taper and fiery brilliance.

The band’s low-profile setting ensures the ring sits close to the finger, offering comfort for everyday wear without sacrificing sparkle. Crafted with meticulous attention in our Williamsburg studio, the rose gold is hand-finished to a soft, warm sheen that complements the diamond’s sharp geometry. The halo setting adds a delicate border of smaller stones, enhancing light reflection while maintaining a sleek, secure structure.

Each lab-grown diamond is selected for clarity and ethical sourcing, reflecting a commitment to sustainability without compromise. The ring’s slender silhouette suits hands that appreciate refined elegance and works beautifully alongside stackable bands or a wedding band with similar proportions.

Resizing is available to ensure a precise fit, and the semi-set design invites you to choose a center stone that speaks to your personal vision. Typical lead times accommodate careful crafting and quality inspection.

Visit our Williamsburg studio to explore this design in person or begin your custom journey online—where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and local authenticity.

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.