Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette across the hand. This semi-set solitaire invites you to select a 10 x 5 mm center stone, whose tapered shape naturally elongates fingers with architectural grace.

Crafted in warm 18K yellow gold, the mounting features a low-profile setting designed for everyday wear. The band’s subtle curve and secure prongs ensure comfort and durability without excess height, making it glove-friendly and stackable with other bands.

Each piece reflects a commitment to sustainability through lab-grown diamonds, offering clarity and brilliance with a lighter environmental footprint. The ethical choice is seamlessly integrated into a design built for life’s moments.

Ideal for those who appreciate refined geometry and understated elegance, this ring balances presence with practicality. Its semi-set form allows for personalized stone selection, ensuring your engagement ring is uniquely yours.

Resizing is available to achieve a precise fit, and our Brooklyn studio welcomes you to explore custom options in person or through our online design experience.

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, pressure-free approach to custom 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.