Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of an 8 x 4 mm marquise diamond, casting a slender, luminous shadow across the hand. This semi-set solitaire ring invites you to select a center stone that balances architectural drama with refined elegance.

Crafted from warm 18K yellow gold, the band is shaped and polished in our Williamsburg studio to a smooth, comfort fit that feels like a second skin. Its low-profile setting ensures everyday wearability without sacrificing presence, while the artisan finish reveals subtle handwork in every curve and edge.

Each lab-grown diamond offers a clarity and brilliance that honors sustainable practices, reflecting a commitment to ethical jewelry without compromise.

The elongated marquise shape naturally elongates the finger, making this ring especially suited for those who appreciate bold geometry paired with understated comfort. Its solitaire design stands beautifully alone or layered with stackable bands.

Should you need resizing or wish to explore stone options, our Brooklyn studio provides personalized guidance with attentive care and transparent timelines.

Discover the possibilities in person at our Williamsburg workshop or begin your custom design journey online—crafted for daily life, made for your story.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical design in every piece.

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.