Lab-Grown Diamond Engagement Ring

Sunlight catches the slender silhouette of a marquise diamond, its tapered points tracing a delicate arc that seems to elongate the hand with quiet elegance. This semi-set solitaire invites you to choose a center stone that will become a personal emblem of your story.

Crafted in warm 14K rose gold, the mounting balances romance with modern restraint. The low-profile setting ensures the ring sits close to the finger, while the smooth band offers a comfort fit designed for everyday wear. Each curve is hand-finished in our Williamsburg studio, where precision meets subtle artistry.

Our lab-grown diamonds bring clarity and brilliance without compromise, reflecting a commitment to ethical jewelry that honors both beauty and sustainability.

The marquise shape’s elongated form flatters slender fingers and pairs effortlessly with stacking bands or a wedding ring. Its semi-set design allows for a custom selection of a 6 x 3.5 mm stone, giving you control over the final expression of your engagement ring.

Should you need resizing or guidance on stone choices, our Brooklyn studio offers personalized consultations to ensure a seamless experience.

Visit us in Williamsburg or begin your custom design journey online—where craftsmanship and intention meet in every detail.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and a deep connection to New York City’s creative 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.