Lab-Grown Diamond Engagement Ring

Soft light catches the gentle curves of a 9 x 9 mm cushion diamond, its rounded corners inviting a quiet intimacy. This three-stone semi-set ring, crafted in warm 18K rose gold, frames the center stone with two delicate side gems, enhancing its subtle vintage glow without overwhelming the hand.

Each band is hand-finished in our Williamsburg studio, polished to a satin-smooth comfort fit that settles naturally for daily wear. The low-profile setting balances presence with practicality, allowing the ring to slip easily beneath gloves or stack alongside other bands.

Our diamonds are lab-grown, offering a clarity and brilliance that honors both ethical sourcing and environmental mindfulness. This ring’s romantic silhouette suits those drawn to classic forms with a modern, conscientious edge.

Designed for hands that appreciate softness in shape and strength in craftsmanship, this semi-set allows you to select a cushion-cut center stone that reflects your personal story. Resizing is available to ensure a seamless fit.

Explore this design in person at our Williamsburg studio or begin your custom journey online—each step guided by quiet expertise and thoughtful care.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings. Our commitment to ethical craftsmanship and local artistry shapes every piece we create in New York City.

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.