Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its pointed ends drawing the eye along the finger with subtle drama. This semi-set three-stone ring invites you to select a 6 x 3 mm marquise center, framed by two delicately crafted side stones that balance brilliance and grace.

Hand-forged in 14K rose gold, the band’s warm hue complements the diamond’s fiery sparkle, while the low-profile setting ensures everyday comfort without sacrificing presence. Each prong is meticulously finished by hand in our Williamsburg studio, creating a secure cradle that showcases the stone’s signature tapered shape.

Our commitment to lab-grown diamonds means this ring carries a clarity and ethical transparency that aligns with a modern, conscientious lifestyle.

Designed for those who appreciate refined artistry and subtle statement, the slender band fits comfortably beneath gloves and pairs effortlessly with stacking rings or wedding bands. Its balanced proportions suit a variety of hand shapes, enhancing length and elegance.

Should you need resizing, our in-house jewelers provide precise adjustments to ensure a perfect fit without compromising the ring’s integrity.

Explore this semi-set marquise engagement ring in person at our Williamsburg studio or begin your custom design journey online—crafted for daily life, made with intention.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a deep connection to New York City’s artisan spirit.

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.