Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, luminous shadow that dances across your hand. This three-stone semi-set engagement ring in warm 14K yellow gold frames a 12 x 6 mm marquise center, its pointed ends drawing the eye along the finger’s natural line.

Each element is meticulously crafted in our Williamsburg studio, where the low-profile setting balances presence with everyday ease. The gently curved shank offers a comfort fit, while the three-stone arrangement adds subtle depth without overwhelming the hand’s natural grace. Polished to a soft glow, the yellow gold band complements the marquise’s glassy brilliance with a warm embrace.

Our diamonds are lab-grown, chosen for their clarity and ethical origin, reflecting a commitment to sustainability without compromise. This ring suits those who appreciate refined geometry paired with a romantic narrative—ideal for hands that favor slender, elongated shapes and a design that layers beautifully with stacking bands or a wedding band.

Should you need resizing, our in-house artisans ensure a seamless adjustment, preserving the ring’s integrity and comfort. Lead times are typically four to six weeks, allowing for thoughtful customization and finishing.

Visit our Williamsburg studio to explore this semi-set marquise engagement ring in person or begin your custom design journey online. Haejin Jewelry blends expert craftsmanship with ethical sensibility, creating lab-grown diamond engagement rings that resonate with Brooklyn’s creative spirit and your personal story.

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.