Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, luminous beam across the hand. This semi-set solitaire invites you to select a center stone measuring 12 by 6 millimeters, its tapered points offering a striking balance of drama and elegance.

Crafted in 10K yellow gold, the mounting is designed with a low-profile setting that nestles close to the finger, ensuring comfort for everyday wear. The band’s smooth finish and subtle curvature provide a secure yet gentle embrace, ideal for those who appreciate refined simplicity without bulk.

Each piece is meticulously finished in our Williamsburg studio, where precision meets quiet durability. The semi-set design allows for personalized stone selection, giving you control over the exact sparkle and character of your engagement ring.

Our commitment to ethical jewelry is reflected in the exclusive use of lab-grown diamonds, offering clarity and brilliance with a reduced environmental footprint.

This ring suits hands that favor elongated shapes, enhancing slender fingers and pairing effortlessly with stackable bands or wedding bands. Its low profile makes it glove-friendly and practical for daily life.

Should you need resizing or guidance on stone selection, our Brooklyn studio offers expert advice with no pressure and transparent timelines.

Explore this semi-set marquise solitaire in person or begin your custom design journey online—crafted for those who value thoughtful detail and enduring wearability.

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 local, personalized approach to design.

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.