Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, radiant beam that seems to stretch beyond the hand. This semi-set engagement ring invites you to choose a 7 x 3.5 mm marquise stone, its tapered points evoking a quiet drama and refined elegance.

Crafted from warm 10K yellow gold, the slender band is shaped for comfort and daily wear, its smooth finish reflecting the artisanal care poured into every curve. The solitaire setting is designed to sit low, allowing the diamond to catch light without overwhelming the finger, making it an ideal choice for those who appreciate subtle sophistication.

Each lab-grown diamond offers a clarity and brilliance born from sustainable practices, aligning with a modern commitment to ethical jewelry. This ring’s design balances classic romance with contemporary sensibility, perfect for hands that favor grace and understated presence.

Its streamlined profile pairs effortlessly with stacking bands or stands beautifully alone, while the semi-set nature means your chosen stone will be expertly secured by our Brooklyn studio’s jewelers. Resizing is available to ensure a personalized fit that feels natural every day.

Visit our Williamsburg studio to explore this ring in person or begin your custom design journey online—crafted for the rhythms of life and love in Brooklyn.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical values and local artistry to create pieces meant for a lifetime.

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.