Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it traces a delicate arc that seems to stretch the hand with quiet elegance. This semi-set solitaire ring invites you to choose a center stone that measures 9 by 4.5 millimeters, its tapered points offering a subtle drama that balances boldness with grace.

Crafted in 18K white gold, the mounting features a refined low-profile setting that secures the stone while maintaining a sleek, comfortable fit for everyday wear. The band’s smooth finish and gentle curvature ensure it slips on effortlessly, complementing the diamond’s distinctive shape without overwhelming it.

Each lab-grown diamond embodies a commitment to ethical jewelry, offering clarity and brilliance with a reduced environmental footprint. This piece is designed for those who appreciate a modern silhouette paired with thoughtful sustainability.

Ideal for hands that favor elongated forms, the marquise shape naturally lengthens fingers and pairs beautifully with stackable bands or a simple wedding band. Its low profile makes it glove-friendly and unobtrusive, perfect for daily life in Brooklyn’s vibrant rhythm.

Should you wish to adjust the fit, resizing is available to ensure the ring feels as personal as the story it represents. Lead times reflect careful craftsmanship, with every detail inspected in our Williamsburg studio.

Explore this semi-set marquise solitaire in person or begin your custom design journey online—each step guided by quiet expertise and a passion for meaningful jewelry.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship and local artistry converge 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.