Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it traces a delicate arc that feels both intimate and bold. This semi-set solitaire invites you to choose a center stone that will stretch gracefully across the finger, its 7 x 3.5 mm proportions lending a refined, tapered drama.

Crafted in 18K white gold, the mounting balances subtle coolness with a polished finish that enhances the diamond’s fire without overwhelming it. The slender prongs hold the stone securely while maintaining a low-profile setting, designed for everyday wear and ease beneath gloves or rings stacked alongside.

Each piece is shaped and finished in our Williamsburg studio, where precision meets quiet artistry. The comfort-fit band curves gently to the hand, ensuring the ring feels as natural as it looks.

Our commitment to lab-grown diamonds means your chosen stone carries the clarity and brilliance of mined gems, with a lighter environmental footprint and transparent origins.

This solitaire suits those drawn to a blend of classic romance and modern refinement—ideal for hands that appreciate elegance without excess. The semi-set design offers flexibility, allowing you to select a marquise diamond that reflects your personal story.

Should you need resizing or guidance on stone selection, our Brooklyn studio offers a pressure-free consultation tailored to your rhythm and style.

Explore this semi-set marquise solitaire in person or begin your custom design journey online. At Haejin Jewelry, we craft lab-grown diamond engagement rings with an expert hand and an ethical heart, rooted in the creative pulse of Williamsburg, Brooklyn.

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.