Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set three-stone ring in 18K white gold offers a poised foundation for a 6 x 3.5 mm center stone, ready to be chosen and personalized.

Each band is hand-shaped in our Williamsburg studio, polished to a satin-smooth finish that feels weightless on the finger. The low-profile setting ensures daily comfort while the three-stone design balances sparkle with subtlety, allowing side stones to frame the center with architectural precision.

Crafted exclusively with lab-grown diamonds, this ring reflects a commitment to ethical sourcing and environmental mindfulness without compromising brilliance.

Its slender shank suits those who favor a refined silhouette, ideal for stacking or wearing alone. The marquise shape’s elongated form visually lengthens the finger, lending an elegant drama that complements both delicate and bold styles.

Should you need resizing, our in-studio artisans handle adjustments with care to maintain the ring’s integrity and finish.

Explore this semi-set marquise engagement ring in person at our Williamsburg workshop or begin your custom design journey online—where expert guidance meets Brooklyn craftsmanship.

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.

Haejin Jewelry is a Brooklyn fine-jewelry studio known for custom lab-grown designs. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.