Lab-Grown Diamond Engagement Ring

Imagine the gentle curve of a marquise diamond catching morning light, its elongated silhouette casting a subtle shadow along your finger. This semi-set solitaire invites you to choose a 12 x 6 mm center stone, whose tapered points lend a graceful drama that elongates the hand with quiet confidence.

Crafted from 14K white gold, the mounting balances strength with refined elegance, its slender prongs designed to cradle the stone securely while allowing maximum light to dance through every facet. The band’s smooth finish and modest profile ensure comfort for daily wear, slipping easily beneath gloves or alongside a stack of complementary rings.

Each lab-grown diamond reflects a commitment to ethical sourcing and environmental mindfulness, offering clarity and brilliance without compromise. The ring’s design suits those who appreciate a blend of classic form and modern sustainability, perfect for hands that favor understated sophistication over flash.

Should you need a custom fit, resizing is handled delicately in-studio to preserve the band’s integrity and finish. Lead times vary slightly depending on stone selection, with personalized guidance available throughout.

Visit our Williamsburg studio to explore this semi-set marquise solitaire in person or begin your custom design journey online—crafted for life’s intimate moments, made in Brooklyn.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship and ethical design converge 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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.