Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, luminous shadow that dances along the finger. This semi-set engagement ring invites you to choose your own 8 x 4 mm center stone, framed by delicate accent details that echo the artisan spirit of our Williamsburg workshop.

Crafted from warm 10K yellow gold, the band is shaped with subtle curves that balance strength and grace. The low-profile setting ensures the ring sits comfortably beneath daily wear, while the hand-finished accents add texture and depth, revealing the care poured into every facet and prong. Each piece undergoes meticulous inspection to meet exacting standards before it leaves the studio.

Our commitment to sustainability shines through the option for a lab-grown diamond center, offering clarity and brilliance with a lighter environmental footprint.

The ring’s slender band and modest height suit those who appreciate understated elegance and a design that layers effortlessly with other stackable bands. Its shape elongates the finger, ideal for hands seeking a refined yet distinctive statement.

Should you need resizing, our in-studio team in Williamsburg handles adjustments with precision, ensuring a perfect fit without compromising the ring’s integrity.

Explore this semi-set marquise engagement ring in person at our Brooklyn studio or begin your custom design journey online—crafted for life’s intimate moments.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical sourcing and local artistry 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.